Princeton's WordNet

1. profound(adj)

   showing intellectual penetration or emotional depth

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

2. profound(adj)

   of the greatest intensity; complete

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

3. fundamental, profound(adj)

   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"

4. profound(adj)

   coming from deep within one

   "a profound sigh"

5. heavy, profound, sound, wakeless(adj)

   (of sleep) deep and complete

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

6. profound, unfathomed, unplumbed, unsounded(adj)

   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"

Kernerman English Learner's Dictionary

1. profound(adjective)əˈfaʊnd

   involving important or very meaningful thoughts or ideas

   a very profound observation/thought/comment

2. profoundəˈfaʊnd

   extreme or severe

   profound memory loss; profound changes in communications systems

Wiktionary

1. profound(Noun)

   The deep; the sea; the ocean.

   God in the fathomless profound Hath all this choice commanders drowned. Sandys.

2. profound(Noun)

   An abyss.

3. profound(Verb)

   To cause to sink deeply; to cause to dive or penetrate far down.

4. profound(Verb)

   To dive deeply; to penetrate.

5. profound(Adjective)

   Descending far below the surface; opening or reaching to a great depth; deep.

6. profound(Adjective)

   Very deep; very serious

7. profound(Adjective)

   Intellectually deep; entering far into subjects; reaching to the bottom of a matter, or of a branch of learning; thorough; as, a profound investigation or treatise; a profound scholar; profound wisdom.

8. profound(Adjective)

   Characterized by intensity; deeply felt; pervading; overmastering; far-reaching; strongly impressed; as, a profound sleep.

9. profound(Adjective)

   Bending low, exhibiting or expressing deep humility; lowly; submissive; as, a profound bow.

Origin: Late profound, from profont, from profundus, from pro + fundus.

Webster Dictionary

1. Profound(adj)

   descending far below the surface; opening or reaching to a great depth; deep

2. Profound(adj)

   intellectually deep; entering far into subjects; reaching to the bottom of a matter, or of a branch of learning; thorough; as, a profound investigation or treatise; a profound scholar; profound wisdom

3. Profound(adj)

   characterized by intensity; deeply felt; pervading; overmastering; far-reaching; strongly impressed; as, a profound sleep

4. Profound(adj)

   bending low, exhibiting or expressing deep humility; lowly; submissive; as, a profound bow

5. Profound(noun)

   the deep; the sea; the ocean

6. Profound(noun)

   an abyss

7. Profound(verb)

   to cause to sink deeply; to cause to dive or penetrate far down

8. Profound(verb)

   to dive deeply; to penetrate

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