Answer: inadequate

AnswerCrossword Clue
INADEQUATE

Insufficient

INADEQUATE

Lacking

INADEQUATE

Not enough

INADEQUATE
Not up to snuff
INADEQUATE
Deficient.
INADEQUATENot enough.
INADEQUATENot up to
INADEQUATEUnable to make the grade
INADEQUATEWanting