Definitions for "Unprofessional"
An insult hurled at someone during a crisis when they have broken some unwritten rule of professional conduct. Commonly the term is used with the most frequency by people to whom it would just as easily apply. [Go to source
not characteristic of or befitting a profession or one engaged in a profession; "described in unprofessional language so that high school students could understand it"; "was censured for unprofessional conduct"; "unprofessional repairs"
To present participles which come from intransitive verbs, or are themselves employed as adjectives, to mark the absence of the activity, disposition, or condition implied by the participle;