If you describe someone as ~, you mean that they are too pleased with themselves about their achievements or their situation and they think that nothing better is possible.
She handed the cigar back to Jason with a ~ smile.
= smug
ADJ disapproval
If you describe someone as ~, you mean that they are too pleased with themselves about their achievements or their situation and they think that nothing better is possible.
She handed the cigar back to Jason with a ~ smile.
= smug
ADJ disapproval
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012