Meaning : Lacking physical depth. Having little spatial extension downward or inward from an outer surface or backward or outward from a center.
Example :
Shallow water.
A shallow dish.
A shallow cut.
A shallow closet.
Established a shallow beachhead.
Hit the ball to shallow left field.
Having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center. Sometimes used in combination.
A deep well.Meaning : Not deep or strong. Not affecting one deeply.
Example :
Shallow breathing.
A night of shallow fretful sleep.
In a shallow trance.
Relatively deep or strong. Affecting one deeply.
A deep breath.Meaning : Lacking depth of intellect or knowledge. Concerned only with what is obvious.
Example :
Shallow people.
His arguments seemed shallow and tedious.