The term 'as a lamb' is often used to describe someone who is MEEK and GENTLE. Meekness is defined as having or showing a quiet and GENTLE nature, and gentleness is defined as having or showing a kind and tender nature. This phrase is often used to describe someone who is humble, submissive, and unassuming. It can also be used to describe someone who is patient and tolerant in the face of adversity. The crossword solutions for this phrase are MEEK (4 letters) and GENTLE (6 letters).