1. (noun)grief, heartache, heartbreak, brokenheartedness intense sorrow caused by loss of a loved one (especially by death) Synonyms: heartbreak, sorrow, heartache, brokenheartedness, grief
2. (noun)grief, sorrow something that causes great unhappiness Synonyms: regret, sadness, ruefulness, brokenheartedness, heartache, sorrow, sorrowfulness, heartbreak, rue, grief