"openly declared," 1560s, past-participle adjective from profess. Earlier in a more specific sense of "having taken vows of a religious order" (late 14c.). Related: Professedly.
his professed intentions
McKinley was assassinated by a professed anarchist
her professed love of everything about that country
a professed philosopher
profanation
profane
profanity
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profess
professed
profession
professional
professionalism
professionalize
professor