irrational
adjective
, 藢i(r)-\
Definition of irrational
(Entry 1 of 2)
c Greek & Latin prosody
irrational
nounDefinition of irrational (Entry 2 of 2)
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Other Words from irrational
Adjective
, 藢i(r)- \
noun
, 藢i(r)- \
adverb
Synonyms & Antonyms for irrational
Synonyms: Adjective
fallacious, illegitimate, illogical, inconsequent, inconsequential, invalid, nonrational, unreasonable, unreasoning, unsound, weak
Antonyms: Adjective
logical, rational, reasonable, sound, valid, well-founded, well-grounded
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Examples of irrational in a Sentence
Adjective
He became irrational as the fever got worse. She had an irrational fear of cats.Recent Examples on the Web: Adjective
From there, Rees-Mogg鈥檚 dictates go from irrational to perverse. — Burbank Leader, "A Word, Please: New leader of Britain鈥檚 House of Commons imposes unusual grammar rules," 22 Aug. 2019 The aphorism, in the course of history, can be taken as the epitome of the rational or the epitome of the irrational. — Adam Gopnik, The New Yorker, "The Art of Aphorism," 15 July 2019 Phobias: Strong, persistent, irrational fear of places, situations, or objects that pose no threat. — Kayla Webley Adler, Marie Claire, "Feeling Anxious? So Is Everyone Else. This Guide Will Help.," 8 July 2019 Bush's son previously said his father had been diagnosed with schizo-affective disorder and had expressed irrational fears in the past. — Billy Kobin, The Courier-Journal, "Kroger shooting suspect is now competent to stand trial," 27 Oct. 2018 The lawsuit states that medical staff chalked up his irrational behavior to drug use. — oregonlive.com, "Family of Portland man who died jogging on I-5 sues hospital for $3 million, claims doctors brushed off his mental crisis," 13 July 2019 In particular, it is not known why quasicrystal patterns can be described by irrational, competing frequencies. — Quanta Magazine, "In a Grain, a Glimpse of the Cosmos," 13 June 2014 To those of us who would like our language to be a bit more concise than a dog鈥檚 bark, a phobia is an irrational fear. — James Lileks, National Review, "Girth Dearth," 11 July 2019 Overactive imaginations can be dangerously irrational while also being the hallmark of great storytellers everywhere. — Sophie Gilbert, The Atlantic, "The American Paranoia of Stranger Things 3," 4 July 2019Recent Examples on the Web: Noun
Instead, mathematicians ask about the proportion of the total number of irrationals corralled by each fraction. — Quanta Magazine, "New Proof Settles How to Approximate Numbers Like Pi," 14 Aug. 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'irrational.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for irrational
irrational
adjective
English Language Learners Definition of irrational
See the full definition for irrational in the English Language Learners Dictionary
irrational
adjective
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