Not intellectually deep; not penetrating deeply; simple; not wise or knowing.
Not steep; close to horizontal.
Not far forward, close to the net.
Having little depth; significantly less deep than wide.
Concerned mainly with superficial matters.
Extending not far downward.
Lacking interest or substance.
A costermonger's barrow.
A shallow portion of an otherwise deep body of water.
A fish, the rudd.
To make or become less deep.
Not noble; ignoble; base.
Of a metal, being at the lower end of the electrochemical series, i.e. oxidising readily.
To make (someone or something) no longer noble