insufficient

[[t]ɪ̱nsəfɪ̱ʃ(ə)nt[/t]]

ADJ: oft ADJ to-inf, ADJ for n

Something that is insufficient is not large enough in amount or degree for a particular purpose. [FORMAL]

He decided there was insufficient evidence to justify criminal proceedings...

These efforts were insufficient to contain the burgeoning crisis.

Syn:

inadequate

Derived words:

insufficiency [[t]ɪ̱nsəfɪ̱ʃ(ə)nsi[/t]] N-UNCOUNT

Late miscarriages are usually not due to hormonal insufficiency.

insufficiently ADV ADV adj/-ed

Food that is insufficiently cooked can lead to food poisoning.