IPA: /ʌnˈwɪlɪŋnəs/
KK: /ʌnˈwɪlɪŋnəs/
The state of not wanting to do something or being reluctant to do it.
Her unwillingness to participate in the project surprised everyone.
Unwillingness → It is formed from "un-" (meaning not) and "willing" (from Old English "willan", meaning to wish or desire) and "-ness" (meaning a state or condition). The word "unwillingness" describes the state of not wishing or desiring to do something.
Think of 'not' ('un-') wanting to do something ('willing') — that's why unwillingness means the state of not wanting to do something.