a-mantra m. not a Vedic verse or text or any formula
a-mantra mf(A)n., unaccompanied by Vedic verses or texts, [Mn. iii, 121]
unentitled to or not knowing Vedic texts (as a Śūdra, a female, &c.), [Mn. ix, 18] and [xii, 114]
not using or applying Mantra formulas, [Bhām.]