1. [ noun ] extent downward or backward or inward

: "the depth of the water" "depth of a shelf" "depth of a closet"

Related terms: extent penetration shallowness sounding deepness draft deep deep shallow shallow
2. [ noun ] degree of psychological or intellectual depth
Related terms: degree superficiality profundity
3. [ noun ] (usually plural) the deepest and most remote part

"from the depths of darkest Africa" "signals received from the depths of space"

Related terms: region back_of_beyond plural
4. [ noun ] (usually plural) a low moral state

"he had sunk to the depths of addiction"

Related terms: abasement plural
5. [ noun ] the intellectual ability to penetrate deeply into ideas
Synonyms: profundity profoundness astuteness
Related terms: wisdom
Similar spelling:   deft