inconsiderate
Definitions
Lacking proper regard for the feelings or circumstances of others.
Thoughtless or inconsiderate in one's actions or behavior.
Examples
It was very inconsiderate of him to play loud music while his roommates were trying to sleep.
She felt it was inconsiderate for her neighbor to leave trash in the shared hallway.
Leaving the meeting early without saying goodbye is considered quite inconsiderate by the team.
Synonyms
thoughtless insensitive selfish rude heedless tactless uncaring