depth
degree of psychological or intellectual profundity
the attribute or quality of being deep, strong, or intense
the depth of his breathing
the depth of his sighs
the depth of his emotion
deepness
the extent downward or backward or inward
the depth of the water
depth of a shelf
depth of a closet
astuteness
profundity
profoundness
the intellectual ability to penetrate deeply into ideas
(usually plural) a low moral state
he had sunk to the depths of addiction