looking or feeling excessively pleased or satisfied with oneself or one's actions; self-satisfied and complacent
highly self-satisfied and complacent
the constant prying and peeping, the hypocritical lectures, the heavy doses of smug morality — David Graham Phillips
Some say that only people can think, and that computers cannot be people; they then sit back and look smug — K Eric Drexler
smugly adv
smugness noun
[prob from Low German smuck neat, from early Low German smucken to dress]