shallowness

nouns

lack of depth of knowledge or thought or feeling
shallowness, superficiality
is derived from
shallow
the quality of lacking physical depth
"take into account the shallowness at that end of the pool before you dive"
shallowness
is derived from
shallow
antonym
deepness
is a type of (narrower)
the extent downward or backward or inward
"the depth of the water"; "depth of a shelf"; "depth of a closet"
deepness, depth