IPA: /ʌnˈkliːn.lɪ.nəs/
KK: /ʌnˈklɛnlinəs/
The state of being dirty or not clean.
The uncleanliness of the kitchen made it difficult to cook.
Uncleanliness → It is formed from "un-" (meaning not) and "clean" (from Old English *clæne*, meaning free from dirt or impurities) and "-ness" (meaning the state of being). The word "uncleanliness" refers to the state of being not clean or dirty.
Think of 'not' ('un-') being added to 'clean' — this helps you remember that 'uncleanliness' means the state of being dirty.