Nouns

(n)contempt, disdain, scorn, despitelack of respect accompanied by a feeling of intense dislike“he was held in contempt”, “the despite in which outsiders were held is legendary”
(n)condescension, disdain, patronagea communication that indicates lack of respect by patronizing the recipient

Verbs

(v)contemn, despise, scorn, disdainlook down on with disdain“He despises the people he has to work for”, “The professor scorns the students who don't catch on immediately”
(v)reject, spurn, freeze off, scorn, pooh-pooh, disdain, turn downreject with contempt“She spurned his advances”