1. At or to a great depth; far below the surface; as, to sink deeply.

2. Profoundly; thoroughly; not superficially; in a high degree; intensely; as, deeply skilled in ethics. He had deeply offended both his nobles and people. Bacon. He sighed deeply in his spirit. Mark viii. 12.

3. Very; with a tendency to darkness of color. The deeply red juice of buckthorn berries. Boyle.

4. Gravely; with low or deep tone; as, a deeply toned instrument.

5. With profound skill; with art or intricacy; as, a deeply laid plot or intrigue.

DEEP-MOUTHED
Deep"-mouthed`, a.

Defn: Having a loud and sonorous voice. "Deep-mouthed dogs." Dryden.

DEEPNESS
Deep"ness, n.

1. The state or quality of being deep, profound, mysterious, secretive, etc.; depth; profundity; — opposed to shallowness. Because they had no deepness of earth. Matt. xiii. 5.

2. Craft; insidiousness. [R.] J. Gregory.