mild / mīld/ • adj. gentle and not easily provoked: she was implacable, despite her mild exterior. ∎ (of a rule or punishment) of only moderate severity: he received a mild sentence. ∎ not keenly felt or seriously intended: she looked at him in mild surprise. ∎ (of an illness or pain) not serious or dangerous. ∎ (of weather) moderately warm, esp. less cold than expected: it is still mild enough to work outdoors. ∎ (of a medicine or cosmetic) acting gently and without causing harm. ∎ (of food, drink, or tobacco) not sharp or strong in flavor: a mild Italian cheese. DERIVATIVES: mild·ish adj. mild·ness n.