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There are 19 fourteen-letter words containing RATIONAL

ASPIRATIONALLYaspirationally adv. In an aspirational manner.
CONSPIRATIONALconspirational adj. Of, or relating to, or involving conspiration; conspiratorial.
CONSPIRATIONAL adj. relating to conspiration.
GENERATIONALLYgenerationally adv. With regard to the generations.
GENERATIONAL adv. relating to generation.
ILLUSTRATIONALillustrational adj. Serving to illustrate.
ILLUSTRATIONAL adj. relating to illustration.
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.
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.
IRRATIONALISTSirrationalists n. Plural of irrationalist.
IRRATIONALIST n. an upholder of irrationalism.
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.
IRRATIONALNESSirrationalness n. The quality of being irrational.
IRRATIONALNESS n. the state of being irrational.
NONOPERATIONALnonoperational adj. Not operating; not working.
nonoperational adj. Not associated with operation. (Can we add an example for this sense?)
non-operational adj. Alternative form of nonoperational.
OPERATIONALISMoperationalism n. (Sciences) A philosophy that attempts to define all scientific concepts in terms of specified operations…
OPERATIONALISM n. the theory that defines scientific concepts by means of the operations used to prove or determine them, also OPERATIONISM.
OPERATIONALISToperationalist n. A proponent of operationalism.
OPERATIONALIST n. an exponent of operationalism.
PREOPERATIONALpreoperational adj. Prior to a surgical operation.
preoperational adj. In or relating to a Piagetian phase of child development characterized by sparse and logically inadequate…
PREOPERATIONAL adj. preceding an operation.
RATIONALISABLErationalisable adj. Alternative form of rationalizable.
RATIONALISABLE adj. capable of being rationalised, also RATIONALIZABLE.
RATIONALIZABLErationalizable adj. Able to be rationalized.
RATIONALIZABLE adj. capable of being rationalized, also RATIONALISABLE.
RATIONALNESSESRATIONALNESS n. the state of being rational.
REGISTRATIONALregistrational adj. Relating to registration.
REGISTRATIONAL adj. relating to registration.

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: 59 words
  • Scrabble in French: 10 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 25 words


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