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List of 15-letter words containing

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There are 19 fifteen-letter words containing I, L, O, S, 2T, U and Y

ASTRONAUTICALLYastronautically adv. In an astronautic way.
ASTRONAUTICAL adv. relating to astronautics, also ASTRONAUTIC.
EXPOSTULATINGLYexpostulatingly adv. With expostulations.
EXPOSTULATING adv. EXPOSTULATE, to remonstrate; to discuss or reason with.
HETEROSEXUALITYheterosexuality n. The state of being sexually and romantically attracted primarily or exclusively to persons of the opposite sex.
heterosexuality n. Sexual activity with a person of the opposite sex.
HETEROSEXUALITY n. the state of being heterosexual.
INSTANTANEOUSLYinstantaneously adv. Without any delay; in an instantaneous manner.
INSTANTANEOUS adv. done, occurring, or acting without any perceptible duration of time.
INSTITUTIONALLYinstitutionally adv. In an institutional manner.
institutionally adv. Throughout an institution.
INSTITUTIONAL adv. of or relating to an institution, also INSTITUTIONARY.
MULTITUDINOUSLYmultitudinously adv. In a multitudinous way.
MULTITUDINOUS adv. existing in a great multitude.
NEUROPLASTICITYneuroplasticity n. The state or quality of being neuroplastic, of having a brain that adapts to experience.
NUCLEOSYNTHETICnucleosynthetic adj. Of or pertaining to nucleosynthesis.
NUCLEOSYNTHETIC adj. relating to nucleosynthesis.
OBSTRUCTIONALLYobstructionally adv. As, or by way of, an obstruction; obstructively.
OBSTRUCTIONAL adv. relating to obstruction.
PLATITUDINOUSLYplatitudinously adv. In the manner of a platitude.
PLATITUDINOUS adv. characterized by or resembling a platitude, also PLATITUDINAL.
POSTSTIMULATORYpoststimulatory adj. After stimulation.
POSTSTIMULATORY adj. following stimulation.
POSTULATIONALLYpostulationally adv. In a postulational manner.
POSTULATIONAL adv. of or like a postulate.
PSEUDOMUTUALITYPSEUDOMUTUALITY n. a relationship between two persons in which conflict of views or opinions is solved by simply ignoring it.
QUESTIONABILITYquestionability n. The state of being questionable.
QUESTIONABILITY n. the quality of being questionable.
SUBREPTITIOUSLYsubreptitiously adv. Obsolete form of surreptitiously.
SUBREPTITIOUS adv. fraudulently obtained; surreptitious.
SUPERSTITIOUSLYsuperstitiously adv. In a superstitious manner.
SUPERSTITIOUS adv. relating to superstition.
SURREPTITIOUSLYsurreptitiously adv. In a surreptitious manner; stealthily, furtively, secretly.
SURREPTITIOUS adv. done by stealth.
UNPRETENTIOUSLYunpretentiously adv. In a manner that is not pretentious; sincerely, without affectation.
UNPRETENTIOUS adv. free from pretension.
UNTRUSTWORTHILYuntrustworthily adv. In an untrustworthy manner.
UNTRUSTWORTHY adv. not trustworthy.

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: 121 words
  • Scrabble in French: 12 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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