Find Synonyms
necessary Synonyms
Another word for necessary
Choosing another word for necessary depends on context, so the 25 synonyms and similar words below are separated across 4 exact definitions and ranked by match strength.
• adjective (Context 1)
Required to be done, achieved, or present; needed; essential.
Usage Example
"Adequate sleep and proper nutrition are needed for maintaining good health."
Strongest
needed
essential
required
indispensable
vital
requisite
Strong
imperative
mandatory
obligatory
compulsory
• adjective (Context 2)
Determined, existing, or happening by natural laws, logic, or predestination; inevitable.
Usage Example
"Higher unemployment was a inevitable consequence of the sudden economic downturn."
Strongest
inevitable
unavoidable
inescapable
Strong
inexorable
certain
destined
fated
• noun (Context 3)
The basic requirements of life, such as food, warmth, and shelter (usually used in the plural).
Usage Example
"The charity distributed food, blankets, and other basic necessaries to the displaced families."
Strongest
necessity
essential
requisite
requirement
Strong
prerequisite
fundamental
• noun (Context 4)
An outhouse, privy, or lavatory (chiefly historical or regional).
Usage Example
"Behind the colonial farmhouse stood a brick outhouse dating back to the eighteenth century."
Strongest
outhouse
privy
Strong
latrine
lavatory
Opposites of necessary
The opposite of necessary shifts depending on context. Common opposites include:
unnecessary
nonessential
luxury
avoidable
unneeded
contingent
optional
dispensable
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Necessary. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/necessary