Word: unperk
Part of speech: Verb
Syllables: un
perk
Definition: To become less lively or enthusiastic.
Morphemes:
Affix: un-
Language: en
PoS: Prefix
Meaning: absent; lacking; not; negative
Affix: perk
Language: en
PoS: Verb
Meaning: To make trim or smart; to straighten up; to erect; to make a jaunty or saucy display of.