gentle as a lamb
*gentle as a lamb
Cliché [of someone] very gentle. (*Also: as ~.) Don't be afraid of Mr. Schaeffer. He may look fierce, but he's as gentle as a lamb. Lisa was gentle as a lamb when dealing with children.
gentle as a lamb
If someone is as gentle as a lamb, they are very kind and never become angry or aggressive. Brian was as gentle as a lamb and wouldn't hurt anyone. Verdy was as gentle as a lamb off the field but a raging lion on it.