shallow

(noun) a stretch of shallow water. Synonyms: shoal.

(verb) make shallow. Synonyms: shoal. Example: "The silt shallowed the canal."

(verb) become shallow. Synonyms: shoal. Example: "The lake shallowed over time."

(adj) lacking physical depth; having little spatial extension downward or inward from an outer surface or backward or outward from a center. Synonyms: shallow (vs. deep). Examples: "Shallow water." "A shallow dish." "A shallow cut." "A shallow closet." "Established a shallow beachhead." "Hit the ball to shallow left field."

(adj) not deep or strong; not affecting one deeply. Synonyms: shallow (vs. deep). Examples: "Shallow breathing." "A night of shallow fretful sleep." "In a shallow trance."

(adj) lacking depth of intellect or knowledge; concerned only with what is obvious. Examples: "Shallow people." "His arguments seemed shallow and tedious."