IPA: /ˈwɪf.i.ɪst/
KK: /ˈhwɪf.i.ɪst/
Having a strong or unpleasant smell; the most intense version of this quality.
The whiffiest cheese in the shop had a smell that filled the entire room.
Comparative: whiffier
Superlative: whiffiest
'whiff' (from Middle English 'whif', meaning a puff or gust of air) and '-iest' (a superlative suffix indicating the most). The word 'whiffiest' means having the most noticeable or strongest puff or scent.
Think of a strong 'puff' of air or scent ('whiff') and remember that 'whiffiest' describes something that has the most of that strong scent.
No commonly confused words.