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ir·ra·tion·al
 irrational
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- pronunciation:
- ih
rae
sh
nl
- features:
- Word Combinations (adjective), Word Explorer, Word Parts
| part of speech: |
adjective |
| definition 1: |
without reason or sense.
Because of her irrational fear of insects, she searches her bed every night before she goes to sleep.He was so angry that he became irrational.- synonyms:
- foolish, unreasonable
- antonyms:
- rational, reasonable
- similar words:
- absurd, mad
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| definition 2: |
not based on reason or logic; illogical.
- synonyms:
- absurd, illogical, unreasonable
- antonyms:
- logical, rational, reasonable
- similar words:
- incredible, ridiculous
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| related words: |
arbitrary, neurotic, stupid |
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| derivations: |
irrationally (adv.), irrationality (n.), irrationalness (n.) |
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