insufficient
adjective/ĩ.su.fi.ˈsjẽ.tɨ/medium
in·su·fi·cien·te
Definition
Not enough; inadequate.
The police had insufficient evidence to make an arrest.
His income was insufficient to cover his expenses.
Common collocations
insufficient fundsinsufficient evidenceinsufficient data
Etymology
Do latim 'insufficiens, -entis'.