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List of 15-letter words containing

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There are 14 fifteen-letter words containing O, P, 2S, T, U and Y

HYPERFASTIDIOUShyperfastidious adj. Extremely fastidious.
HYPERFASTIDIOUS adj. excessively fastidious.
POLYUNSATURATESpolyunsaturates n. Plural of polyunsaturate.
POLYUNSATURATE n. a fat that is polyunsaturated.
POSTSTIMULATORYpoststimulatory adj. After stimulation.
POSTSTIMULATORY adj. following stimulation.
PROSENCHYMATOUSprosenchymatous adj. Relating to the prosenchyma.
PROSENCHYMATOUS adj. relating to prosenchyma, supporting plant tissue containing little protoplasm.
PSYCHOACOUSTICSpsychoacoustics n. The scientific study of all the psychological interactions between humans and the world of sound; includes…
PSYCHOACOUSTICS n. a branch of science dealing with the perception of sound, the sensations produced by sounds, and the problems of communication.
PSYCHOLINGUISTSpsycholinguists n. Plural of psycholinguist.
PSYCHOLINGUIST n. a student of psycholinguistics.
PSYCHONEUROTICSpsychoneurotics n. Plural of psychoneurotic.
PSYCHONEUROTIC n. one suffering from a psychoneurosis.
PSYCHOSEXUALITYpsychosexuality n. The psychological aspects of sexuality.
PSYCHOSEXUALITY n. the psychic factors of sex.
SAUROPTERYGIANSsauropterygians n. Plural of sauropterygian.
SAUROPTERYGIAN n. any carnivorous Mesozoic marine reptile of the group Sauropterygia, with paddle-like limbs.
SERENDIPITOUSLYserendipitously adv. By serendipity; by blind luck in combination with wisdom; by fortunate accident.
SERENDIPITOUS adv. obtained or characterized by serendipity.
SUBREPTITIOUSLYsubreptitiously adv. Obsolete form of surreptitiously.
SUBREPTITIOUS adv. fraudulently obtained; surreptitious.
SUPERSTITIOUSLYsuperstitiously adv. In a superstitious manner.
SUPERSTITIOUS adv. relating to superstition.
SUPPOSITIONALLYsuppositionally adv. In a suppositional manner; by means of, or in the context of, supposition.
SUPPOSITIONAL adv. having the nature of a supposition.
SURREPTITIOUSLYsurreptitiously adv. In a surreptitious manner; stealthily, furtively, secretly.
SURREPTITIOUS adv. done by stealth.

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: 94 words
  • Scrabble in French: 21 words
  • Scrabble in Spanish: 8 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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