Ungracious (adjective)

Not polite or courteous; lacking in good manners.

Origin:

From the prefix un- meaning not and the word gracious.

Examples:

1. The ungracious host did not make their guests feel welcome.
2. She had an ungracious attitude towards her coworkers.
3. His ungracious behavior made people uncomfortable.
4. The ungracious comments were not appreciated.
5. The ungracious guests left the party early without saying goodbye.