profound
adjective
showing intellectual penetration or emotional depth
“the differences are profound”
“a profound insight”
Oppositessuperficialof the greatest intensity; complete
“a profound silence”
“a state of profound shock”
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”
Synonymsfundamentalcoming from deep within one
“a profound sigh”
(of sleep) deep and complete
“a heavy sleep”
“fell into a profound sleep”
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”
Source: WordNet 3.1, Princeton University
