profound
1. [ adjective ] showing intellectual penetration or emotional depths; from the depths of your being
Examples:

"the differences are profound" "a profound insight" "a profound book" "a profound mind" "profound contempt" "profound regret"

Related terms: superficial deep thoughtful intimate intense scholarly
2. [ adjective ] of the greatest intensity; complete
Examples:

"a profound silence" "a state of profound shock"

Related terms: intense
3. [ adjective ] (of sleep) deep and complete
Synonyms: sound wakeless heavy
Examples:

"a heavy sleep" "fell into a profound sleep" "a sound sleeper" "deep wakeless sleep"

Related terms: deep
4. [ adjective ] coming from deep within one
Examples:

"a profound sigh"

Related terms: deep
5. [ adjective ] far-reaching and thoroughgoing in effect especially on the nature of something
Synonyms: fundamental
Examples:

"the fundamental revolution in human values that has occurred" "the book underwent fundamental changes" "committed a fundamental error" "profound social changes"

Related terms: significant
6. [ adjective ] situated at or extending to great depth; too deep to have been sounded or plumbed
Synonyms: unplumbed unsounded unfathomed
Examples:

"the profound depths of the sea" "the dark unfathomed caves of ocean"-Thomas Gray "unplumbed depths of the sea" "remote and unsounded caverns"

Related terms: deep
Similar spelling:   profoundly
  propound
  profundity