be inadequate

See: lack
References in classic literature ?
The only answer that can be given is, that as all these exterior provisions are found to be inadequate, the defect must be supplied, by so contriving the interior structure of the government as that its several constituent parts may, by their mutual relations, be the means of keeping each other in their proper places.
His head seemed swollen to a size that made him think his neck to be inadequate.
Furthermore, traditional hazardous materials and emergency medical procedures may be inadequate to respond to a WMD event (3-5).
His reaction to the tentative agreement is that, "Although this is a step in the right direction, I am concerned that the amount of money proposed will still be inadequate to fairly compensate all victims.