IPA: /ʌnˈklɪrli/
KK: /ʌnˈklɪrli/
In a way that is not clear or easy to understand.
The instructions were unclearly written, making it hard to follow them.
Unclearly → It is formed from "un-" (meaning not) and "clear" (from Old English "cleare", meaning free from darkness or obscurity) and "-ly" (meaning in a manner). The word "unclearly" means in a manner that is not clear or free from obscurity.
Think of 'not' ('un-') being added to 'clear' to remember that 'unclearly' means something is not clear.