Quick Answer
The strict antonym of similarly is differently: “in a different way” instead of “in a similar way.” Two close alternatives are dissimilarly (formal) and contrarily (stronger: it suggests opposition, not mere difference).
But similarly has a second job. At the start of a sentence it is a linking word that adds a matching point: “Similarly, the second trial succeeded.” In that job its opposites are not single-word antonyms but contrast markers: conversely, in contrast, and on the other hand.
Quick Comparison
| Opposite | Meaning | Example |
|---|---|---|
| Differently | In a different way | The twins solved the puzzle differently. |
| Dissimilarly | In a way that is not alike | The two regions developed dissimilarly. |
| Contrarily | In an opposing way | Contrarily, the report blamed the weather, not the driver. |
| Oppositely | In the opposite way or direction | The brothers felt oppositely about the plan. |
| Conversely | Introducing the reverse case | Conversely, the smaller team finished first. |
| In contrast | Highlighting a difference | In contrast, the second method failed. |
| On the other hand | Giving the other side | On the other hand, the costs were lower. |
| Unlike | Different from (preposition) | Unlike his brother, Sam works nights. |
Strict Antonyms vs Discourse Markers
A strict antonym reverses the meaning of the word itself, in the same grammatical slot. Similarly and differently are both adverbs of manner, so one can replace the other word for word: “They reacted similarly” becomes “They reacted differently,” and the sentence still works.
A discourse marker operates on the whole sentence instead. It does not reverse a word’s dictionary meaning; it reverses the direction of the argument. Sentence-opening similarly says, “Here is another point that matches the last one.” Conversely, in contrast, and on the other hand say, “Here is a point that goes the other way.” They are genuine opposites in function, but they cannot be swapped into the middle of a clause the way differently can.
Core Antonyms for Similarly
1. Differently
Meaning: In a different way; not in the same manner.
Example: The two students answered the questions differently.
Best context: Everyday speech and writing: the safe default whenever similarly describes how something is done.
Nuance vs similarly: A perfect slot-for-slot reversal. It says nothing about how large the difference is, so it suits any manner contrast, small or large.
2. Dissimilarly
Meaning: In a way that is not similar; without likeness.
Example: The two economies grew dissimilarly over the decade.
Best context: Formal, academic, or technical writing, where the lack of likeness is itself the point.
Nuance vs similarly: The most literal opposite, because it negates similar directly. It is genuine but uncommon, and in conversation it usually sounds stiff where differently sounds natural.
3. Contrarily
Meaning: In a way that goes against something; in opposition.
Example: Contrarily, the finance minister insisted the economy was shrinking, not growing.
Best context: When the difference is active opposition or contradiction, not just variation between two things.
Nuance vs similarly: Stronger than differently. Two things can be different without being contrary; contrarily claims they pull in opposite directions.
4. Oppositely
Meaning: In an opposite way, position, or direction.
Example: Told the same news, the two brothers reacted oppositely: one laughed, the other went quiet.
Best context: Paired positions, directions, or views that are mirror images of each other.
Nuance vs similarly: A genuine adverb, but narrower than differently. It implies two poles, so it fits only when the contrast is a true reversal, not an ordinary difference.
Contextual Opposites
These are not strict antonyms of the adverb, but each one expresses the opposite idea in the right kind of sentence.
Conversely
A discourse marker that introduces the reverse of the point just made. Where similarly extends a point, conversely turns it around: “Similarly, the northern stores raised their prices. Conversely, the southern stores cut theirs.”
In contrast
A discourse marker that highlights a difference between two things: “The first treatment eased the symptoms. In contrast, the second made them worse.” It contrasts situations, not manners, so it cannot replace similarly inside a clause.
On the other hand
A discourse marker that presents the second side of a comparison. It needs a first point to balance against: “Similarly, both plans save time. On the other hand, only one of them saves money.”
Unlike
Unlike is a preposition, not an adverb, and it must be followed by a noun or pronoun: “Unlike her sister, Maria prefers working alone.” It expresses the opposite relationship: difference from something: not the opposite manner, so the sentence must be rebuilt around it.
Example Sentences
- The two machines work similarly. → The two machines work differently.
- The cultures developed dissimilarly after the split.
- The ministers argued to the contrary, each rejecting the other’s figures.
- The panels are arranged oppositely, one vertical and one horizontal.
- Sales rose in the capital. In contrast, they fell in the provinces.
- On the other hand, the cheaper model lasted longer.
- Unlike the first edition, the second one includes exercises.
Common Mistakes
Mistake 1: Using “likewise” as an opposite
Likewise is a synonym of similarly, not an antonym: it means “in the same way” or “also.” ✗ “He agreed; likewise, I disagreed.” ✓ “He agreed; in contrast, I disagreed.”
Mistake 2: Using “unlike” as an adverb
✗ “The two students studied unlike.” Unlike needs a noun after it. ✓ “The two students studied differently.” ✓ “Unlike her classmates, Sara studied at home.”
Mistake 3: Treating “separately” or “distinctly” as antonyms
Separately means “apart,” and distinctly means “clearly.” Neither reverses “in a similar way,” so neither is a true antonym of similarly: however often padded lists include them.
Mistake 4: Using “contrarily” for ordinary differences
If two shops are simply decorated in different styles, differently is the honest word. Save contrarily for real opposition.
Mistake 5: Using “on the other hand” with nothing to contrast
The phrase promises a second side. If no first point exists in the sentence before, use differently or in contrast instead: or add the missing point.
Mini Quiz
1. Which word is the strict antonym of similarly in this sentence? “The twins solved the puzzle similarly.”
A. Likewise
B. Differently
C. Also
2. Which opener correctly reverses the direction of this sentence pair? “The first factory expanded output. __, the second one cut production.”
A. Likewise
B. In contrast
C. As well
3. Why can’t unlike replace similarly in “The brothers trained similarly”?
A. Unlike is a synonym of similarly
B. Unlike is a preposition and needs a noun after it
C. Unlike is only used in questions
Answers: 1. B: differently reverses the manner adverb in the same slot; likewise and also point the same way as similarly. 2. B: in contrast reverses the direction of the argument; likewise and as well would keep adding matching points. 3. B: unlike introduces the person or thing being contrasted, as in “Unlike his brother, Tom trained at night.”
Short Questions & Answers
Q: What is the main antonym of similarly?
A: Differently. It belongs to the same word class, fits the same position in the sentence, and reverses the meaning exactly.
Q: Is “conversely” a true antonym of similarly?
A: Only for its linking use. When similarly opens a sentence to add a matching point, conversely is a genuine functional opposite. It cannot replace the manner adverb inside a clause.
Q: What is the difference between similarly and likewise?
A: Almost none: they are near-synonyms. Both mean “in the same way” and can open a sentence to add a matching point. Neither is an opposite of the other.
Q: Is “dissimilarly” correct English?
A: Yes. It is a real adverb and the most literal opposite of similarly, but it is formal and rare. In most writing, differently is the natural choice.
Q: Can “in contrast” replace “similarly” anywhere?
A: No. In contrast only works between statements, setting one situation against another. Inside a clause describing how something is done, you need differently.
Key Takeaways
- The strict antonym of similarly is differently; dissimilarly, contrarily, and oppositely are genuine but narrower, more formal, or stronger.
- Sentence-opening similarly is opposed by discourse markers: conversely, in contrast, and on the other hand: which reverse the argument, not the word.
- Unlike expresses the opposite relationship but is a preposition, so the sentence must be rebuilt around it.
- Likewise is a synonym, and separately and distinctly are not antonyms at all: an honest list leaves them out.

Hi, I’m Amna Akhtar. I write about word meanings, opposites, and the small distinctions that make English tricky. I don’t come at language purely from instinct, either. I have a peer-reviewed academic paper “Determinants of Jobs Satisfaction of Female Teachers: An Evidence from District Hafizabad, Pakistan,” published in education economics, and that research background shapes how I think about language content, I want it to actually help people learn, not just look correct on a page. Whether you’re a student, a writer, or just someone who wants to use the right word at the right moment, my goal is to make that easier for you.










