stern 10 antonyms and opposites of stern. Adjective — Serious and strict in manner; harsh or severe. Synonyms for stern brutal callous cold cold-eyed cruel dour flint-hearted forbidding frosty grim hard hard-boiled hardened hardhearted heartless harsh humorless icy iron-hearted insensate insensitive marble-hearted rigorous rockhearted severe stonehearted stony stonyhearted strict tough unsympathetic unmoved Antonyms for stern animated cheerful emotional empathic gregarious kindly lenient soft unstrict vivacious ← Back to the full definition of stern
