tenuous
adjective
[ ˈtɛnjʊəs ]
• very weak or slight.
• "the tenuous link between interest rates and investment"
Similar:
slight,
insubstantial,
flimsy,
negligible,
weak,
fragile,
shaky,
sketchy,
doubtful,
dubious,
questionable,
suspect,
vague,
nebulous,
hazy,
unspecific,
indefinite,
indeterminate,
Origin:
late 16th century: formed irregularly from Latin tenuis ‘thin’ + -ous.