1. provoking extreme/intense emotion or thinking
lecture/conversation/discussion was quite/a bit profound, had a profound effect on
'Profound' is a word that can be used as an adjective or adverb, describing a person, thing or action. Something 'profound' evokes strong feelings or is a serious matter: "The poem deals with the issue of loneliness in a profound way." "Rental prices are a profound problem in today's society."