Definitions

1. verb

to refuse to accept or acknowledge something, especially because it is considered unacceptable

“She unaccepted his apology, feeling that it was insincere.”

2. verb

to reject or refuse something, especially in a formal or official context

“The company unaccepted the tender, citing financial difficulties.”

3. noun

the act of refusing to accept or acknowledge something

“The unacceptance of her proposal was a major setback for the project.”