Thesaurus
Synonyms & Antonyms of irrational
not using or following good reasoning
- it's irrational to think that you can continue to consume an excess of calories and not gain weight
Synonyms for irrational
Words Related to irrational
- eristic
- (also eristical),
- misleading,
- sophistic
- (or sophistical),
- specious
Near Antonyms for irrational
Antonyms for irrational
Keep scrolling for more
Keep scrolling for more
Comments on irrational
What made you want to look up irrational? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words of Snow and Ice Quiz
- Which of the following refers to thin, bending ice, or to the act of running over such ice?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Words of Snow and Ice Quiz
A selection of words from the chillier parts of t...
Take the quiz - Name that Thing: Toys and Games Edition
It's all fun and games until someone beats your h...
Take the quiz - True or False?
Test your knowledge - and maybe learn something a...
Take the quiz - SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share irrational
Time Traveler for irrational
The first known use of irrational was in the 14th century
See more words from the same century