smug

smug

/smʌɡ/

(disapproving)

​looking or feeling too pleased about something you have done or achieved

a smug expression/smile/face, etc.

What are you looking so smug about?

verbs

appearbefeel…

adverb

extremelyfairlyvery…

preposition

about

Word Origin

mid 16th cent. (originally in the sense ‘neat, spruce’): from Low German smuk ‘pretty’.