adj. 1. Content or composed; untroubled: "She remained serene in the face of her accusers" (Peter Matthiessen). 3. Unclouded; fair: serene skies and a bright blue sea. 4. often Serene Used as a title and form of address for certain members of royalty: Her Serene Highness; His Serene Highness. [Middle English, from Latin serēnus, serene, clear.] se·renely adv. se·reneness n. |
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