If you feel disdain for someone or something, you dislike them because you think that they are inferior or unimportant. Janet looked at him with disdain = contempt, scorn
To think unworthy; to deem unsuitable or unbecoming; as, to disdain to do a mean act
lack of respect accompanied by a feeling of intense dislike; "he was held in contempt"; "the despite in which outsiders were held is legendary"
If you disdain someone or something, you regard them with disdain. Jackie disdained the servants that her millions could buy. a complete lack of respect that you show for someone or something because you think they are not important or good enough with disdain