Profound

Part of speech: noun (n.)

1. The deep; the sea; the ocean. God in the fathomless profound Hath all this choice commanders drowned. Sandys.

2. An abyss. Milton.

Part of speech: verb (v.)

To cause to sink deeply; to cause to dive or penetrate far down. [Obs.] Sir T. Browne.

Part of speech: verb (v.)

To dive deeply; to penetrate. [Obs.]

Part of speech: adjective (a.)

1. Descending far below the surface; opening or reaching to a great depth; deep. "A gulf profound." Milton.

2. 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. Characterized by intensity; deeply felt; pervading; overmastering; far-reaching; strongly impressed; as, a profound sleep. "Profound sciatica." Shak. Of the profound corruption of this class there can be no doubt. Milman.

4. Bending low, exhibiting or expressing deep humility; lowly; submissive; as, a profound bow. What humble gestures! What profound reverence! Dupp