Find Antonyms

unreasonably Antonyms

Opposite of unreasonably

Because the opposite of unreasonably shifts with each meaning, the 9 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• adverb (Context 1)

In a way that is not guided by or based on good sense, fairness, or sound judgment.

Usage Example

"The landlord acted reasonably by refusing to repair the broken heating system during the winter."

Strongest
reasonably
sensibly
rationally
Strong
fairly
logically
justly

• adverb (Context 2)

To a degree that exceeds the bounds of moderation or what is considered acceptable; excessively.

Usage Example

"The tickets for the concert were moderately expensive, so we decided to watch the broadcast at home instead."

Strongest
moderately
reasonably
Strong
modestly
acceptably

Similar words to unreasonably

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

excessively
irrationally
unduly
inordinately
unfairly
exorbitantly
immoderately
illogically
See all synonyms of unreasonably

• Nearby Words

unrealized
unreasonable
unreasonableness
unreasonably
unreasoning
unreceptive
unreciprocated

Cite this Entry

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