tenuous
Cross references:
1. thin
ten.u.ous \'ten-y*-w*s\ aj [L tenuis thin, slight, tenuous - more at THIN]
1: not dense : RARE {a ~ fluid} 2: not thick : SLENDER {a ~ rope} 3:
having little substance or strength : FLIMSY, WEAK {@ influences a ~ hold
on reality} - ten.u.ous.ly av
Webster's English Dictionary