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List of 15-letter words containing

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There are 10 fifteen-letter words containing E, 2F, O, S and U

EFFICACIOUSNESSefficaciousness n. Quality of being efficacious.
EFFICACIOUS n. having the power to produce a desired effect.
EFFORTFULNESSESEFFORTFULNESS n. EFFORTFUL, requiring effort.
FLORIFEROUSNESSfloriferousness n. Quality of being floriferous, or bearing many flowers.
FLORIFEROUS n. bearing flowers.
FORGETFULNESSESforgetfulnesses n. Plural of forgetfulness.
FORGETFULNESS n. the state of being forgetful.
INEFFICACIOUSLYinefficaciously adv. Without efficacy or effect.
INEFFICACIOUS adv. lacking the power to produce a desired effect.
INOFFICIOUSNESSinofficiousness n. The quality of being inofficious.
INOFFICIOUS n. not officious.
INTERDIFFUSIONSinterdiffusions n. Plural of interdiffusion.
INTERDIFFUSION n. the process of diffusing and mixing freely so as to approach a homogeneous mixture.
NONFULFILLMENTSnonfulfillments n. Plural of nonfulfillment.
NONFULFILLMENT n. something that is not fulfillment, also NONFULFILMENT.
OFFICIOUSNESSESofficiousnesses n. Plural of officiousness.
OFFICIOUSNESS n. OFFICIOUS, volunteering one's services too eagerly.
UNFOSSILIFEROUSunfossiliferous 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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