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There are 19 words beginning with IRRATIONA

IRRATIONALirrational adj. Not rational; unfounded or nonsensical.
irrational adj. (Mathematics, arithmetic, number theory, not comparable) Of a real number, that cannot be written as…
irrational n. A real number that can not be expressed as the quotient of two integers, an irrational number.
IRRATIONALISEirrationalise v. Alternative form of irrationalize.
IRRATIONALISE v. to make irrational, also IRRATIONALIZE.
IRRATIONALISEDirrationalised v. Simple past tense and past participle of irrationalise.
IRRATIONALISE v. to make irrational, also IRRATIONALIZE.
IRRATIONALISESirrationalises v. Third-person singular simple present indicative form of irrationalise.
IRRATIONALISE v. to make irrational, also IRRATIONALIZE.
IRRATIONALISINGirrationalising v. Present participle of irrationalise.
IRRATIONALISE v. to make irrational, also IRRATIONALIZE.
IRRATIONALISMirrationalism n. A philosophical movement formed as a cultural reaction against positivism in the early 20th century.
IRRATIONALISM n. a system emphasizing intuition, instinct, feeling, or faith rather than reason or holding that the universe is governed by irrational forces.
IRRATIONALISMSirrationalisms n. Plural of irrationalism.
IRRATIONALISM n. a system emphasizing intuition, instinct, feeling, or faith rather than reason or holding that the universe is governed by irrational forces.
IRRATIONALISTirrationalist n. One who is irrational in their beliefs or ideas.
irrationalist n. A follower of irrationalism.
IRRATIONALIST n. an upholder of irrationalism.
IRRATIONALISTICirrationalistic adj. Of or relating to irrationalism.
IRRATIONALISTIC adj. relating to irrationalism.
IRRATIONALISTSirrationalists n. Plural of irrationalist.
IRRATIONALIST n. an upholder of irrationalism.
IRRATIONALITIESirrationalities n. Plural of irrationality.
IRRATIONALITY n. the state of being irrational.
IRRATIONALITYirrationality n. The quality or state of being irrational; want of the faculty or the quality of reason; fatuity.
irrationality n. Something which is irrational or brought forth by irrational action, judgement, idea or thought.
irrationality n. (Mathematics) The property of being irrational.
IRRATIONALIZEirrationalize v. (Transitive) To make irrational.
IRRATIONALIZE v. to make irrational, also IRRATIONALISE.
IRRATIONALIZEDirrationalized v. Simple past tense and past participle of irrationalize.
IRRATIONALIZE v. to make irrational, also IRRATIONALISE.
IRRATIONALIZESirrationalizes v. Third-person singular simple present indicative form of irrationalize.
IRRATIONALIZE v. to make irrational, also IRRATIONALISE.
IRRATIONALIZINGirrationalizing v. Present participle of irrationalize.
IRRATIONALIZE v. to make irrational, also IRRATIONALISE.
IRRATIONALLYirrationally adv. In an irrational manner; without reason; in a manner contrary to reason.
IRRATIONAL adv. not rational.
IRRATIONALNESSirrationalness n. The quality of being irrational.
IRRATIONALNESS n. the state of being irrational.
IRRATIONALSirrationals n. Plural of irrational.
IRRATIONAL n. an irrational number.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 23 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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