- 2. Mysterious, intricate, knotty, difficult, hard (to comprehend), unfathomable, profound.
- 3. Sagacious, penetrating, intelligent, discerning, shrewd, astute.
- 4. Absorbed, engrossed, rapt up.
- 5. Grave, low, not high, not sharp.
- 6. Dark, intense.
- 7. Great, thorough, entire, heartfelt.
Deep, n.
- 1. Sea, ocean, main, abyss of waters.
- 2. Depth, profound, abyss, deepest part or place, recess, bottom.
- 3. Mystery, enigma, profound riddle.
- 4. Stillness, silence, stillest part, inmost part, midst.
Deep, ad. See deeply.
Deepen, v. a.
- 1. Make deeper, increase the depth of.
- 2. Make darker, make more intense, darken, intensify.
- 3. Reduce to a lower tone, make more grave, lower.
- 4. Make more impressive or efficient, intensify, strengthen, increase, heighten, make more vivid.
Deepen, v. n. Grow deeper, become deeper, increase, heighten, become intenser or more decided.
Deeply, ad.
- 1. Profoundly, deep, to or at a great depth, far down.
- 2. Thoroughly, entirely, completely, profoundly.