Synonyms of self-interest

2 Syllables
conceit, boasting, self-love, bragging, egoism, pride, vaunting
3 Syllables
vainglory, self-regard, haughtiness, selfishness, boastfulness, presumption, self-worship, narcissism, egotism, vanity
4 Syllables
arrogance, assurance, self-absorption, conceitedness, gasconade, swellheadedness, egomania, ostentation, insolence, self-possession
5 Syllables
superiority, self-confidence, self-importance, self-admiration, megalomania, self-involvement, self-centeredness
6 Syllables
overconfidence, egocentricity