casteist adjective 1noun 1forms 3 adjective1 •Constituting, exhibiting, advocating, or pertaining to casteism.The casteist slur of 'chamar' was hurled at a worker in a private housing colony and he was prevented from walking before certain residents because of the casteist fear of pollution. — 2021 noun1 •One who discriminates against people based on their caste.If Indians endorse literature that endorses caste, all it means is that such admirers are also unabashed casteists or apologists for caste. — 2015 formscasteists · more casteist · most casteist