Find Antonyms

reasonable Antonyms

Opposite of reasonable

Because the opposite of reasonable shifts with each meaning, the 19 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Having sound judgment; fair, sensible, and guided by logic rather than excessive emotion.

Usage Example

"Most people are willing to compromise if you approach them in a calm and unreasonable manner."

Strongest
unreasonable
irrational
illogical
Strong
unfair
absurd
arbitrary
foolish

• adjective (Context 2)

As much as is appropriate or fair; moderate and not excessive in amount, degree, or expectation.

Usage Example

"The contractor promised to complete the kitchen renovation within a excessive timeframe."

Strongest
excessive
extreme
Strong
outrageous
immoderate
extravagant
unrealistic

• adjective (Context 3)

Not too expensive; priced fairly in relation to quality or value.

Usage Example

"The neighborhood bistro serves fresh, locally sourced meals at very exorbitant prices."

Strongest
exorbitant
extortionate
overpriced
Strong
expensive
prohibitive
costly

Similar words to reasonable

Words similar to reasonable shift depending on context. Common synonyms include:

sensible
affordable
rational
moderate
logical
acceptable
fair
inexpensive
See all synonyms of reasonable

• Nearby Words

reascend
reason
reasonability
reasonable
reasonableness
reasonably
reasoning

Cite this Entry

Wordmom. (2026). Antonyms for Reasonable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/reasonable
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