Shallow

flach

(having little depth and significantly less deep than wide)

oberflächlich

(concerned mainly with superficial matters)

oberflächlich

(lacking interest or substance)

seicht

(having little depth and significantly less deep than wide)

seicht

(extending not far downward)

untief

(having little depth and significantly less deep than wide)

Gelungg

(shallow portion of an otherwise deep body of water)

Untiefe

(shallow portion of an otherwise deep body of water)