noun

• (uncountable) A feeling of contempt or scorn.
  "The cat viewed the cheap supermarket catfood with disdain and stalked away."
• (obsolete) That which is worthy to be disdained or regarded with contempt and aversion.
  "Most loathsom, filthy, foul, and full of vile Disdain."
• (obsolete) The state of being despised; shame.
  "The leaves and fruit maintain'd with beauty's sun ; Exempt from envy , but not from disdain"

verb

• (transitive) To regard (someone or something) with strong contempt.
  "When the Philistine […] saw David, he disdained him; for he was but a youth."
• (intransitive, obsolete) To be indignant or offended.
  "When the chefe prestes and scribes sawe, the marveylles that he dyd [...], they desdayned, and sayde unto hym: hearest thou what these saye?"