Synonyms to essential

ab ovo, ab initio, aborigine, afresh, again, anew, as new, at first, at the start, basal, basic, before everything, chiefly, constituent, constitutive, de novo, elemental, elementary, first, first and foremost, first thing, firstly, freshly, from scratch, from the beginning, fundamental, gut, in the beginning, initially, mainly, material, new, newly, of the essence, once more, original, originally, primal, primarily, primary, primitive, primo, principally, radical, substantial, substantive, underlying, austere, Albigensian, Catharist, Franciscan, Lenten, Sabbatarian, Spartan, Spartanic, Trappist, Waldensian, abstemious, abstinent, amaroidal, anchoritic, ascetic, astringent, authoritarian, bald, bare, biting, bitter, bleak, candid, chaste, common, commonplace, demanding, direct, dour, dry, dull, dwarfed, dwarfish, earnest, eremitic, exacting, exigent, exiguous, flagellant, frank, frugal, grave, grim, hard, harsh, homely, homespun, homogeneous, impoverished, inclement, indivisible, inornate, irreducible, jejune, keen, lean, limited, matter-of-fact, meager, mean, mendi