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There are 4 fifteen-letter words beginning with INSI

INSIDIOUSNESSESinsidiousnesses n. Plural of insidiousness.
INSIDIOUSNESS n. INSIDIOUS, developing or advancing gradually and imperceptibly.
INSIGNIFICANCESinsignificances n. Plural of insignificance.
INSIGNIFICANCE n. the state of being insignificant, also INSIGNIFICANCY.
INSIGNIFICANTLYinsignificantly adv. In an insignificant manner, or to a degree that does not matter.
INSIGNIFICANT adv. not significant.
INSIGNIFICATIVEinsignificative adj. Not expressing meaning; not significant.
INSIGNIFICATIVE adj. not significative or expressing by external signs.

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: 11 words
  • Scrabble in French: no word
  • Scrabble in Spanish: 3 words
  • Scrabble in Italian: 7 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 5 words


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