profound
adjective
1. intellectually deep; entering far into subjects; reaching to the bottom of a matter, or of a branch of learning; thorough.
- the differences are profound
- a profound insight
- a profound book
Similar word(s): intense, deep, thoughtful, scholarly
2. of the greatest intensity; complete
- a profound silence
- a state of profound shock
Similar word(s): intense
3. related the most important part of something; the essence.
- profound social changes
Similar word(s): important, significant, fundamental
4. coming from deep within one
- a profound sigh
Similar word(s): deep
5. (of sleep) deep and complete
- fell into a profound sleep
Similar word(s): deep, heavy, sound, wakeless
6. situated at or extending to great depth; too deep to have been sounded or plumbed
- the profound depths of the sea
Similar word(s): deep, unfathomed, unplumbed, unsounded
noun
1. (obsolete) The deep; the sea; the ocean.
2. (obsolete) An abyss.
verb
1. (obsolete) To cause to sink deeply; to cause to dive or penetrate far down.
2. (obsolete) To dive deeply; to penetrate.