IPA: /ˈfeɪntɪst/
KK: /feɪntɪst/
The smallest amount or degree of something; very weak or slight.
She had the faintest idea of what was happening.
Comparative: fainter
Superlative: faintest
Faintest → It is formed from "faint" (from Old French *feint*, meaning feigned or not strong) and the superlative suffix "-est" (meaning most). The word "faintest" refers to the most feeble or weakest degree of something.
Think of something that is the 'most feeble' or 'weakest' — 'faint' means weak, and '-est' indicates the highest degree.