shallow shallow /ˈʃæloʊ/

adjective

1. () Lacking physical depth; having little spatial extension downward or inward from an outer surface or backward or outward from a center  ( shallow )
   lacking physical depth; having little spatial extension downward or inward from an outer surface or backward or outward from a center
    Shallow water
   shallow water
    A shallow dish
   a shallow dish
    A shallow cut
   a shallow cut
    A shallow closet
   a shallow closet
    Established a shallow beachhead
   established a shallow beachhead
    Hit the ball to shallow left field
   hit the ball to shallow left field
   
2. Not deep or strong; not affecting one deeply  ( shallow )
   not deep or strong; not affecting one deeply
    Shallow breathing
   shallow breathing
    A night of shallow fretful sleep
   a night of shallow fretful sleep
    In a shallow trance
   in a shallow trance
   
3. Lacking depth of intellect or knowledge; concerned only with what is obvious  ( shallow )
   lacking depth of intellect or knowledge; concerned only with what is obvious
    Shallow people
   shallow people
    His arguments seemed shallow and tedious
   his arguments seemed shallow and tedious
   

noun

1. A stretch of shallow water  ( shallow , shoal )
   a stretch of shallow water
   

verb

1. Become shallow  ( shallow , shoal )
   become shallow
    The lake shallowed over time
   the lake shallowed over time
   
2. Make shallow  ( shallow , shoal )
   make shallow
    The silt shallowed the canal
   The silt shallowed the canal