IPA: /ˈɡʌstiəst/
KK: /ˈɡʌstiɪst/
This word describes something that has the strongest or most intense bursts of wind.
The gustiest winds of the season knocked down several trees in the park.
Comparative: gustier
Superlative: gustiest
Gustiest → It is formed from "gust" (from Old French *guste*, meaning a sudden strong blast of wind) and "-iest" (a superlative suffix indicating the most). The word "gustiest" means having the most sudden strong blasts of wind.
Think of a strong 'blast of wind' ('gust') that is the 'most' intense — that's what 'gustiest' means.
No commonly confused words.