inappropriate
adj. C1 Advanced Oxford US //ˌɪnəˈpɹoʊpɹiɪt// UK //ˌɪnɐpɹˈəʊpɹiət// in·ap·pro·pri·ate
adj. not suitable or right for a particular situation, person, or place. You use this when someone's behavior or clothing doesn't match the social rules of the moment.
adj. unsuitable or improper for a specific context, purpose, or occasion. Often used to describe social conduct or professional behavior that violates established norms.
His loud jokes were inappropriate for a quiet library.
The manager warned the employee that wearing beach clothes to a formal client meeting was highly inappropriate.
While the data itself was accurate, the researcher's casual tone was deemed inappropriate for such a prestigious academic journal, leading to a request for a full revision.
From in- + appropriate.
Usage
Commonly followed by the preposition 'for'.