Dictionary and Thesaurus

Definition of Necessity

• (n.) The quality or state of being necessary, unavoidable, or absolutely requisite; inevitableness; indispensableness.
• (n.) The condition of being needy or necessitous; pressing need; indigence; want.
• (n.) That which is necessary; a necessary; a requisite; something indispensable; -- often in the plural.
• (n.) That which makes an act or an event unavoidable; irresistible force; overruling power; compulsion, physical or moral; fate; fatality.
• (n.) The negation of freedom in voluntary action; the subjection of all phenomena, whether material or spiritual, to inevitable causation; necessitarianism.

Synonyms of Necessity

• Essential
• Requirement
• Requisite
• Necessary

Antonyms of Necessity

• Inessential

Homophones of Necessity