Definition

Something that is not allowed or is considered to be poor quality and not good enough.

Example

The behavior at the meeting was unacceptable and needed to be addressed.

Conversation

I can't believe they charged us for that service; it feels unacceptable.

I know, right? It left a bad taste in my mouth.

Exactly! It's just not the kind of treatment we deserve.

Agreed — I think we should complain about it.

Synonyms & Antonyms

Root Explanation

Unacceptable → It is formed from "un-" (meaning not) and "acceptare" (meaning to receive or take). The word "unacceptable" means not able to be received or taken, indicating something that is not permissible or tolerable.

Memory Tip

Think of 'not' ('un-') being combined with 'to receive' ('acceptare') — this helps you remember that 'unacceptable' means something that cannot be accepted.

Visually Confused Words