The quality or state of being necessary, unavoidable, or absolutely requisite.
The condition of being needy; desperate need; lack
Something necessary; a requisite; something indispensable.
Something which makes an act or an event unavoidable; an irresistible force; overruling power
The negation of freedom in voluntary action; the subjection of all phenomena, whether material or spiritual, to inevitable causation; necessitarianism.
Greater utilitarian good; used in justification of a criminal act.
(in the plural) Indispensable requirements (of life).