1. one that mewls; especially a person who cries or whimpers weakly
Usage: often derogatory

Examples

• The coach had no patience for mewlers on his team.
• Don’t be such a mewler about a little scratch.
• The kitten was a constant mewler, crying for its mother.
• He dismissed his critics as mere mewlers and complainers.
• The baby bird was a pitiful mewler in the nest.