As adverbs the difference between unclearly and uncleanly
is that unclearly is in an unclear manner while uncleanly is not in a clean way; in an unclean way.
As an adjective uncleanly is
dirty, unhygienic, not cleanly.
uncleanly
English
Etymology 1
From (un-) + (cleanly).
Adjective
(
en adjective)
dirty, unhygienic, not cleanly
not pure in a moral or religious sense
Synonyms
* unclean
Etymology 2
From (unclean) + (-ly).
Adverb
(
en adverb)
not in a clean way; in an unclean way