tenuous

Adjective

WordNet 3.0

having thin consistency“a tenuous fluid”
very thin in gauge or diameter“a tenuous thread”
lacking substance or significance; a fragile claim to fame"“slight evidence”“a tenuous argument”“a thin plot”Synonyms: flimsy fragile slight thin

Tenuous \Ten"u*ous\, a. [L. tenuis thin. See Thin, and cf. Tenuis.]

1.Thin; slender; small; minute. [1913 Webster]

2.Rare; subtile; not dense; -- said of fluids. [1913 Webster] [1913 Webster]