"supercillious" is probably misspelled. Trying supercilious instead Definition of supercilious
1
[ adjective ] having or showing arrogant superiority to and disdain of those one views as unworthy

Examples

"some economists are disdainful of their colleagues in other disciplines" "haughty aristocrats" "his lordly manners were offensive" "walked with a prideful swagger"

2
[ adjective ] expressive of contempt

Synonyms

snide sneering

Examples

"curled his lip in a supercilious smile" "spoke in a sneering jeering manner" "makes many a sharp comparison but never a mean or snide one"

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