secret, covert, stealthy, furtive, clandestine, surreptitious, underhanded mean done without attracting observation. secret implies concealment on any grounds for any motive.
Definition of covert adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
From Middle English covert, from Old French covert, past participle of covrir (“to cover”) (corresponding to Latin coopertus); cognate to cover. Not closely related to overt, despite what the most common pronunciation would suggest.
