"tenuous" in the adjective sense
1. tenuous
having thin consistency
"a tenuous fluid"
2. tenuous
very thin in gauge or diameter
"a tenuous thread"
3. flimsy, fragile, slight, tenuous, thin
lacking substance or significance
"slight evidence"
"a tenuous argument"
"a thin plot"
"a fragile claim to fame"
Source: WordNet® (An amazing lexical database of English)
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