tenuous

adjective

ten·​u·​ous ˈten-yə-wəs 

-yü-əs

1

a

: having little substance or strength : flimsy, weak

tenuous influences

b

: shaky sense 2a

tenuous reasons

2

: not thick : slender

a tenuous rope

3

: not dense : rare

a tenuous fluid

tenuously adverb

tenuousness noun

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What is the Definition of tenuous?

Something tenuous has been stretched thin and might break at any time. A person with a tenuous hold on his sanity should be watched carefully. If a business is only tenuously surviving, it will probably go bankrupt in the next recession. If there seems to be only a tenuous connection between two crimes, it means the investigators have more work to do.

Choose the Right Synonym for tenuous

thin, slender, slim, slight, tenuous mean not thick, broad, abundant, or dense.

thin implies comparatively little extension between surfaces or in diameter, or it may imply lack of substance, richness, or abundance.

thin wire

a thin soup

slender implies leanness or spareness often with grace and good proportion.

the slender legs of a Sheraton chair

slim applies to slenderness that suggests fragility or scantiness.

a slim volume of poetry

a slim chance

slight implies smallness as well as thinness.

a slight build

tenuous implies extreme thinness, sheerness, or lack of substance and firmness.

a tenuous thread

Examples of tenuous in a Sentence

What is also true is that they, and I, were lucky, through genes or fate, to surge through the maelstrom of dashed hope and denied opportunity to grasp a tenuous piece of the American Dream. —Anthony Walton, Lure and Loathing, 1993

After the end of the crusading period, however relations between East and West had grown tenuous … —Albert Hourani, Islam in European Thought, 1991

The authors follow researchers as they use the slimmest leads and the most tenuous connections to track the genes for Huntington's disease, muscular dystrophy, schizophrenia and a host of other physical and mental miseries. —Natalie Angier, New York Times Book Review, 12 Aug. 1990

He has a tenuous grasp on reality.

The local theater has had a tenuous existence in recent years.

He could demonstrate only a tenuous claim to ownership.

Recent Examples on the Web

That doesn’t mean his interim tag will be removed anytime soon, though, a subtle reminder of a tenuous situation. —Jen McCaffrey, New York Times, 27 May 2026

This year's Hajj takes place against the backdrop of a tenuous ceasefire in the Iran war and related uncertainty throughout the region. —ABC News, 27 May 2026

This year, Muslims have been pouring into Saudi Arabia for the Hajj against the backdrop of a tenuous ceasefire in the Iran war and related uncertainty in the region. —Baraa Anwer, Los Angeles Times, 26 May 2026

Yet their position as a team with a 31-21 record seems a bit tenuous given the state of the offense and the Padres stars. —Jeff Sanders, San Diego Union-Tribune, 25 May 2026

Word History

Etymology

Latin tenuis "fine-drawn, thin, narrow, slight" + -ous — more at thin entry 1

First Known Use

1597, in the meaning defined at sense 3

Kids Definition

tenuous

adjective

ten·​u·​ous ˈten-yə-wəs 

: having little substance or strength : flimsy, weak

a tenuous hold on reality

tenuously adverb