List of 15-letter words containing ••••••

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There are 15 fifteen-letter words containing 2F, 2I, N and 2S

DIFFRACTIVENESS	• DIFFRACTIVE n. causing diffraction.
DIFFUSIVENESSES	• diffusivenesses n. Plural of diffusiveness. • DIFFUSIVENESS n. the state of being diffusive.
DISAFFILIATIONS	• disaffiliations n. Plural of disaffiliation. • DISAFFILIATION n. the act of disaffiliating.
DISAFFIRMATIONS	• disaffirmations n. Plural of disaffirmation. • DISAFFIRMATION n. the act of disaffirming.
EFFICACIOUSNESS	• efficaciousness n. Quality of being efficacious. • EFFICACIOUS n. having the power to produce a desired effect.
INDIFFERENTISMS	• indifferentisms n. Plural of indifferentism. • INDIFFERENTISM n. the belief that all religions are equally valid.
INDIFFERENTISTS	• indifferentists n. Plural of indifferentist. • INDIFFERENTIST n. an exponent of indifferentism.
INEFFECTIVENESS	• ineffectiveness n. The condition of being ineffective. • INEFFECTIVENESS n. the state of being ineffective.
INOFFENSIVENESS	• inoffensiveness n. The state or condition of being inoffensive. • INOFFENSIVE n. causing no harm or injury, also UNOFFENSIVE.
INOFFICIOUSNESS	• inofficiousness n. The quality of being inofficious. • INOFFICIOUS n. not officious.
INSUFFICIENCIES	• insufficiencies n. Plural of insufficiency. • INSUFFICIENCY n. the state of being insufficient, also INSUFFICIENCE.
INTERDIFFUSIONS	• interdiffusions n. Plural of interdiffusion. • INTERDIFFUSION n. the process of diffusing and mixing freely so as to approach a homogeneous mixture.
OFFICIOUSNESSES	• officiousnesses n. Plural of officiousness. • OFFICIOUSNESS n. OFFICIOUS, volunteering one's services too eagerly.
SUFFICINGNESSES	• SUFFICINGNESS n. the state of being sufficing.
UNFOSSILIFEROUS	• unfossiliferous adj. Not fossiliferous, nonfossiliferous. • UNFOSSILIFEROUS adj. not fossiliferous.

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: 58 words
Scrabble in French: 38 words
Scrabble in Spanish: 3 words
Scrabble in Italian: 23 words
Scrabble in German: no word
Scrabble in Romanian: no word

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