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Synonyms

tenuous

American  
[ten-yoo-uhs] / ˈtɛn yu əs /

adjective

  1. lacking a sound basis, as reasoning; unsubstantiated; weak.

    a tenuous argument.

  2. of slight importance or significance.

    He holds a rather tenuous position in history.

    Synonyms:
    trifling, trivial, insignificant
    Antonyms:
    substantial, important
  3. lacking in clarity; vague.

    He gave a rather tenuous account of his past life.

  4. thin or slender in form, as a thread.

    Synonyms:
    attenuated
    Antonyms:
    thick
  5. thin in consistency; rare or rarefied.


tenuous British  
/ ˈtɛnjʊəs, tɛˈnjʊɪtɪ /

adjective

  1. insignificant or flimsy

    a tenuous argument

  2. slim, fine, or delicate

    a tenuous thread

  3. diluted or rarefied in consistency or density

    a tenuous fluid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • tenuity noun
  • tenuously adverb
  • tenuousness noun
  • untenuous adjective
  • untenuously adverb
  • untenuousness noun

Etymology

Origin of tenuous

First recorded in 1590–1600; tenu(ity) + -ous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He’s retired, and the rotation is as tenuous as ever.

From Los Angeles Times • Mar. 22, 2026

It comes at a tenuous time for the market.

From Barron's • Mar. 2, 2026

“It doesn’t mean that we shouldn’t have it. It just means that’s more tenuous … but I do think that we should say it’s wrong and that it’s damaging.”

From Salon • Feb. 12, 2026

In a market where sometimes tenuous links spell big moves for stocks, the Super Bowl halftime performance from Bad Bunny failed to produce coattails.

From MarketWatch • Feb. 9, 2026

Supposedly they were sworn to the Arcyns of the Vale, but the Eyrie’s grasp upon the islands was tenuous at best.

From "A Dance with Dragons" by George R. R. Martin