tenuous — OAT

tenuous

adjective

1 evidence that greenhouse warming had started was at best tenuous:

slight, insubstantial, flimsy, negligible, weak, fragile, shaky, sketchy, doubtful, dubious, questionable, suspect;

vague, nebulous, hazy, unspecific, indefinite, indeterminate.

▷antonyms convincing, substantial, strong.

2 a tenuous thread:

fine, thin, slender, attenuated, delicate, gossamer, fragile.

▷antonyms thick.