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List of 9-letter words ending with

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There are 15 nine-letter words ending with UOUS

AMBIGUOUS• ambiguous adj. Open to multiple interpretations.
• ambiguous adj. (Obsolete, of persons) Hesitant; uncertain; not taking sides.
• AMBIGUOUS adj. open to more than one interpretation.
ASSIDUOUS• assiduous adj. Hard-working, diligent or regular (in attendance or work); industrious.
• ASSIDUOUS adj. diligent; persistent.
CONGRUOUS• congruous adj. Corresponding in character.
• congruous adj. Harmonious.
• CONGRUOUS adj. harmonious, concordant.
DECIDUOUS• deciduous adj. (Biology, anatomy) Describing a part that falls off, or is shed, at a particular time or stage of development.
• deciduous adj. (Botany) Of or pertaining to trees which lose their leaves in winter or the dry season.
• deciduous adj. Transitory, ephemeral, not lasting.
DIVIDUOUS• dividuous adj. Divided; dividual.
• DIVIDUOUS adj. divided; special.
FRUCTUOUS• fructuous adj. (Rare) fruitful.
• FRUCTUOUS adj. fruitful.
IMPETUOUS• impetuous adj. Making arbitrary decisions, especially in an impulsive and forceful manner.
• impetuous adj. Characterized by sudden violence or vehemence.
• IMPETUOUS adj. tending to act in a rash or impulsive manner.
INGENUOUS• ingenuous adj. Naive and trusting.
• ingenuous adj. Demonstrating childlike simplicity.
• ingenuous adj. Unsophisticated; clumsy or obvious.
INNOCUOUS• innocuous adj. Harmless; producing no ill effect.
• innocuous adj. Inoffensive; unprovocative; unexceptionable.
• INNOCUOUS adj. harmless.
IRRIGUOUS• irriguous adj. (Archaic, poetic) Irrigated, well-watered.
• IRRIGUOUS adj. watered; wet; irrigating.
RESIDUOUS• residuous adj. (Archaic) Remaining; residual.
• RESIDUOUS adj. remaining, also RESIDUAL.
SILIQUOUS• siliquous adj. Siliquose.
• SILIQUOUS adj. relating to a siliqua, a type of dry fruit consisting of a long pod of two carpels divided by a partition, also SILIQUOSE.
STRENUOUS• strenuous adj. Having great vigour or energy; forceful.
• strenuous adj. (Of a task) Requiring great exertion; very laborious.
• STRENUOUS adj. requiring great exertion.
SUMPTUOUS• sumptuous adj. Magnificent, luxurious, splendid.
• SUMPTUOUS adj. luxurious.
THEFTUOUS• theftuous adj. Of the nature of theft; thievish.
• THEFTUOUS adj. thievish.

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: 27 words
  • Scrabble in French: no word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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