snobbery

chest-thumping, inflation, self-assertion, side [chiefly British], snobbishness, snobbism, snootiness

arrogance, assumption, bumptiousness, consequence, haughtiness, hauteur, high horse, huffiness, imperiousness, loftiness, lordliness, masterfulness, peremptoriness, pomposity, pompousness, presumptuousness, pretense (or pretence), pretension, pretentiousness, self-consequence, self-importance, superciliousness, superiority, toploftiness

authoritativeness, bossiness, bowwow, brag, dominance, high-handedness

condescension, disdain, scorn

attitude, cheek, cheekiness, impertinence, impudence, sauciness

boastfulness, bombast, braggadocio, bravado, strut, swagger, triumphalism, vaingloriousness, vainglory

cockiness, complacence, conceit, egoism, egotism, pride, pridefulness, self-assumption, self-centeredness, self-complacency, self-conceit, self-content, self-contentment, self-opinion, self-partiality, self-satisfaction, smugness, swelled head, vanity

superiority complex