shal·low 
(shălō)
(shălō)adj. shal·low·er, shal·low·est
1. Measuring little from bottom to top or surface; lacking physical depth.
2. Lacking depth of intellect, emotion, or knowledge: "This is a shallow parody of America" (Lloyd Rose).
3. Marked by insufficient inhalation of air; weak: shallow respirations.
4. In the part of a playing area that is closer to home plate: shallow left field.
n.
often shallows A part of a body of water of little depth; a shoal: abandoned the boat in the shallows.
tr. & intr.v. shal·lowed, shal·low·ing, shal·lows
To make or become shallow.
[Middle English schalowe.]
shallow·ly adv.
shallow·ness n.