sombre adj.
VERBS be, look, seem Everyone looked very sombre. | become, grow His eyes grew sombre. | remain The mood in Parliament remained sombre.
ADV. very | fairly, rather, somewhat She was in a somewhat sombre mood. | suitably The funeral cortege passed, to suitably sombre music.
You can also check other dicts: sombre (English, 中文解释 ), wordnet sense, Collins Definition