unprofessional
adjective
Meaning
Failing to meet the standards of behavior, ethics, or competence expected in a specific field of work.
Examples
- His unprofessional conduct during the board meeting resulted in a formal reprimand from the director.
- It was completely unprofessional of the manager to discuss private employee salaries in the breakroom.
Synonyms: rude, improper, incompetent, unethical