Main Entry: in·suf·fi·cient

Pronunciation: \ˌin(t)-sə-ˈfi-shənt\

Function: adjective

Etymology: Middle English, from Anglo-French, from Late Latin insufficient-, insufficiens, from Latin in- + sufficient-, sufficiens sufficient

Date: 14th century

: not sufficient : inadequate <insufficient funds>; especially : lacking adequate power, capacity, or competence <insufficient bandwidth>

— in·suf·fi·cient·ly adverb