Synonyms of smuggest

2 Syllables
pompous, priggish, hotshot, snobbish, stuck-up, stuffy
3 Syllables
puffed-up, complacent, self-righteous, conceited, superior, vainglorious, egoistic
4 Syllables
holier-than-thou, self-contented, self-satisfied
5 Syllables
egotistical