MILD' (5 letters) MILD and GENTLE are both adjectives used to describe something that is not harsh or severe. They are often used to describe people, behavior, or emotions. MILD is a four-letter word meaning 'not strong or intense, ' while GENTLE is a five-letter word meaning 'kind, tender, and considerate.' Both words imply a lack of harshness or severity, but GENTLE implies a greater degree of kindness and consideration.