IPA: /ʌnˈnoʊɪŋli/
KK: /ʌnˈnoʊɪŋli/
In a way that shows a lack of awareness or intention; done without knowing.
She unknowingly revealed the surprise party plans when she mentioned it to him.
Unknowingly → It is formed from "un-" (meaning not) and "knowing" (from Old English "cnāwan", meaning to know) and the suffix "-ly" (meaning in a manner). The word "unknowingly" means in a manner that is not aware or without knowledge.
Think of 'not' ('un-') being added to 'knowing' — this helps you remember that 'unknowingly' means doing something without awareness.