IPA: /ˈtʃɪr.fəl.ɪst/
KK: /ˈtʃɪrflɪst/
The highest degree of being happy and positive, more than just cheerful.
She was the cheerfullest person at the party, always smiling and making others laugh.
Comparative: more cheerful
Superlative: cheerfullest
Cheerfullest → It is formed from "cheer" (from Old French *chiere*, meaning face or countenance, which evolved to mean mood or spirit) and "-ful" (meaning full of) and "-est" (a superlative suffix indicating the highest degree). The word "cheerfullest" means the most full of cheer or joy.
Think of someone who is 'full of cheer' — 'cheer' relates to mood, and the '-ful' means full, while '-est' indicates the highest level. This helps you remember that 'cheerfullest' describes someone who is the most joyful.
No commonly confused words.