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There are 7 twelve-letter words beginning with INEFF

INEFFABILITYineffability n. The quality or state of being ineffable.
INEFFABILITY n. the state of being ineffable.
INEFFACEABLEineffaceable adj. Incapable of being effaced.
INEFFACEABLE adj. not effaceable.
INEFFACEABLYineffaceably adv. In an ineffaceable manner; in a manner that cannot be removed or erased.
INEFFACEABLE adv. not effaceable.
INEFFICACIESinefficacies n. Plural of inefficacy.
INEFFICACY n. lack of power to produce a desired effect, also INEFFICACITY.
INEFFICACITYINEFFICACITY n. lack of power to produce a desired effect, also INEFFICACY.
INEFFICIENCYinefficiency n. Lack of efficiency or effectiveness.
INEFFICIENCY n. the state of being inefficient.
INEFFICIENTSinefficients n. Plural of inefficient.
INEFFICIENT n. one who is not efficient.

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: 10 words
  • Scrabble in French: 4 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 9 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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