Definition

Not allowed or accepted; something that cannot be done or is not permitted.

Example

The school has strict rules against impermissible conduct during classes.

Conversation

Did you hear about the new rules at school?

Yeah, I heard some things are now considered impermissible.

Right! Like using your phone during class, which seems a bit strict.

I agree, but I guess they want to keep things focused.

Synonyms & Antonyms

Root Explanation

Impermissible → It is formed from "im-" (meaning not) and "permissible" (from Latin "permissibilis", meaning allowable or permitted). The word "impermissible" means not allowable or not permitted.

Memory Tip

Think of 'not' ('im-') allowing something that is 'permitted' ('permissible') — that's why impermissible means something that is not allowed.

Visually Confused Words