Unseemly (adjective)

Not fitting or appropriate; not conforming to social conventions.

Origin:

The word "unseemly" comes from the old english word "unseemlic" which means unbecoming or not suitable. the word "seemly" means fitting or appropriate, so "unseemly" is opposite of it, meaning not fitting or appropriate.

Examples:

1. It would be unseemly to speak ill of the dead.
2. His behavior at the party was unseemly and he was asked to leave.
3. The way she dressed was unseemly for a professional setting.
4. It would be unseemly to discuss that topic in public.
5. His actions in court were unseemly and he was reprimanded by the judge.