Thesaurus
Synonyms & Antonyms of unreasonable
1
having no basis in reason or fact
- an unreasonable assumption
Synonyms for unreasonable
Words Related to unreasonable
Near Antonyms for unreasonable
Antonyms for unreasonable
2
not using or following good reasoning
- an unreasonable respect for a man who did not deserve it
Synonyms for unreasonable
Words Related to unreasonable
- eristic
- (also eristical),
- misleading,
- sophistic
- (or sophistical),
- specious
Near Antonyms for unreasonable
Antonyms for unreasonable
Learn More About unreasonable
Cite this Entry
“Unreasonable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unreasonable. Accessed 27 Sep. 2022.
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Time Traveler for unreasonable
The first known use of unreasonable was in the 14th century
See more words from the same century