demure UK /dɪˈmjʊə(ɹ)/US /dɪˈmjʊɹ/adjective 2verb 1forms 5 adjective2 •Modest, quiet, reserved, or serious.She is a demure young lady. •Affectedly modest, decorous, or serious; making a show of gravity.Miss Lizzy, I have no doubt, would be as demure and coquettish, as if ten winters more had gone over her head. — 1824 verb1 •(no longer used) To look demurely.Your Wife Octavia, with her modest eyes, / […] shall acquire no Honour / Demuring vpon me: — 1606 formsdemured · demuring · demures · demurer · demurest