Adjective

• S: (adj) profound (showing intellectual penetration or emotional depth) "the differences are profound"; "a profound insight"; "a profound book"; "a profound mind"; "profound contempt"; "profound regret"
• S: (adj) profound (of the greatest intensity; complete) "a profound silence"; "a state of profound shock"
• S: (adj) fundamental, profound (far-reaching and thoroughgoing in effect especially on the nature of something) "the fundamental revolution in human values that has occurred"; "the book underwent fundamental changes"; "committed the fundamental error of confusing spending with extravagance"; "profound social changes"
• S: (adj) profound (coming from deep within one) "a profound sigh"
• S: (adj) heavy, profound, sound, wakeless ((of sleep) deep and complete) "a heavy sleep"; "fell into a profound sleep"; "a sound sleeper"; "deep wakeless sleep"
• S: (adj) profound, unfathomed, unplumbed, unsounded (situated at or extending to great depth; too deep to have been sounded or plumbed) "the profound depths of the sea"; "the dark unfathomed caves of ocean"-Thomas Gray; "unplumbed depths of the sea"; "remote and unsounded caverns"