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List of 15-letter words containing

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There are 18 fifteen-letter words containing E, I, L, O, 2S, U and Y

CLEISTOGAMOUSLYcleistogamously adv. In a cleistogamous fashion.
CLEISTOGAMOUS adv. relating to cleistogamy, the production of small inconspicuous closed self-pollinating flowers additional to and often more fruitful than showier ones on the same plant, also CLEISTOGAMIC.
CONSCIENTIOUSLYconscientiously adv. In a conscientious manner; attentively.
CONSCIENTIOUS adv. governed by or conforming to the dictates of conscience.
IMMUNOASSAYABLEimmunoassayable adj. Suitable for immunoassay.
IMMUNOASSAYABLE adj. capable of undergoing immunoassay.
INSTANTANEOUSLYinstantaneously adv. Without any delay; in an instantaneous manner.
INSTANTANEOUS adv. done, occurring, or acting without any perceptible duration of time.
MISCELLANEOUSLYmiscellaneously adv. In a miscellaneous manner.
MISCELLANEOUS adv. consisting of diverse things or members.
NEUROSYPHILISESNEUROSYPHILIS n. a syphilitic infection affecting the central nervous system.
NUCLEOSYNTHESISnucleosynthesis n. (Physics, astronomy) Any of several processes that lead to the synthesis of heavier atomic nuclei.
NUCLEOSYNTHESIS n. the production of a chemical element from simpler nuclei, as of hydrogen, esp. in a star.
PERSPICACIOUSLYperspicaciously adv. With the power of seeing or understanding clearly; quick-sightedly; with sharp of sight.
perspicaciously adv. (Figurative) With acute discernment; keenly; with mental perception.
PERSPICACIOUS adv. clear-minded; astute; perceptive.
PSYCHOSEXUALITYpsychosexuality n. The psychological aspects of sexuality.
PSYCHOSEXUALITY n. the psychic factors of sex.
SCEUOPHYLACIUMSSCEUOPHYLACIUM n. a sacristy.
SEMICONSCIOUSLYsemiconsciously adv. With only partial consciousness.
SEMICONSCIOUS adv. incompletely conscious.
SERENDIPITOUSLYserendipitously adv. By serendipity; by blind luck in combination with wisdom; by fortunate accident.
SERENDIPITOUS adv. obtained or characterized by serendipity.
SPLENDIFEROUSLYsplendiferously adv. In a splendiferous manner.
SPLENDIFEROUS adv. splendid.
SUBREPTITIOUSLYsubreptitiously adv. Obsolete form of surreptitiously.
SUBREPTITIOUS adv. fraudulently obtained; surreptitious.
SULFINPYRAZONESsulfinpyrazones n. Plural of sulfinpyrazone.
SULFINPYRAZONE n. a uricosuric drug used in the long-term treatment of chronic gout.
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.
UNPROGRESSIVELYunprogressively adv. In an unprogressive way.
UNPROGRESSIVE adv. not progressive.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 102 words
  • Scrabble in French: 13 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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