nill /nɪl/verb 3noun 3forms 4 verb3 •(no longer used) To be unwilling; will not (+ infinitive).I here auow thee neuer to forsake. Ill weares he armes, that nill them vse for Ladies sake. — 1590 •(no longer used) To be unwilling.I must indeed abide the Doom of Men, whether I will or I nill:[…] — 1955 •(no longer used) To reject, refuse, negate.Certes (sayd he) I n’ill thine offred grace, Ne to be made so happy doe intend[…]. — 1590 noun3 •Shining sparks thrown off from melted brass. •Scales of hot iron from the forge. •(no longer used) Synonym of zinc oxide, particularly white forms used in medicine and cosmetics. formsnilled · nould · nilling · nills