IPA: /ˈmɔɪstfəl/
KK: /mɔɪstfəl/
Having a lot of moisture; damp or humid.
The moistful air made the garden feel fresh and alive.
Comparative: more moistful
Superlative: most moistful
Moistful → It is formed from "moist" (from Old French *moiste*, meaning slightly wet) and "-ful" (meaning full of). The word "moistful" means full of moisture or dampness.
Think of something that is 'full of' ('-ful') 'slight wetness' ('moist') — that's why moistful means full of moisture.