SNIFFIEST
SNIFFY
disdainful, haughty, imperious, lordly, overbearing, prideful, sniffy, supercilious, swaggering
(adjective) having or showing arrogant superiority to and disdain of those one views as unworthy; “some economists are disdainful of their colleagues in other social disciplines”; “haughty aristocrats”; “his lordly manners were offensive”; “walked with a prideful swagger”; “very sniffy about breaches of etiquette”; “his mother eyed my clothes with a supercilious air”; “a more swaggering mood than usual”- W.L.Shirer
Source: WordNet® 3.1
Adjective
sniffiest
superlative form of sniffy: most sniffy
Source: Wiktionary