How do you spell Insufficient?
Correct spelling
insufficient
Two F's. IN + SUFFICI + ENT.
Why is insufficient spelled this way?
From Latin insufficiens, not enough. IN (not) + SUB (under) + FACERE (to make). Insufficient means not made to the level needed — falling short of the mark.
Common misspellings of insufficient
insuficientinsufficentinsuficiantinnsufficient
Example
The evidence was insufficient for a conviction.