smug adj.
VERBS appear, be, feel, look, seem, sound | become, get Now don't get smug just because you've won a couple of games.
ADV. incredibly, very the incredibly smug expression on his face | almost | a bit, a little, quite, rather, slightly
PREP. about What are you looking so smug about?
You can also check other dicts: smug (English, 中文解释 ), wordnet sense, Collins Definition