You have bought more postage stamps than are necessary.
Source: tatoeba (9589)
Necessary
/ˈnɛsəsɹi/
Synonyms for "necessary" (202 found)
Ranked by relevance and common usage.
Closest matches (41)
absoluteapodicticbackhousebasementbathroombindingboundcalled forcancardinalcertainchoicelessclearclear and distinctclear as dayclosetcomfort stationcompellingcompulsoryconclusive
Show 7 more words
Adjective(8 words)
basic nourishmentbasic teaching conceptcompulsory assessmentcompulsory examconstant companioncrucialcrucial evidencecrucial factor
Strong matches (60)
Noun(7 words)
deliverableessentialessential life science conceptessential questionessential readingimperative formincumbent
Adjective(19 words)
elementalessentialessential biological functionessential biology conceptessential conceptessential goodsessential ideaessential keywordessential micronutrientessential nutrientessential partessential questionsessential service provisionessential skills prioritizationfundamental constantimportant matterimportant personal traitintegral governorinvaluable
Related words (101)
irreplaceableirresistibleirrevocablejakesjohnjohnnykeylatrinelavatoryloomainmandatorymomentousmustnecessitousneedneededneedfulobligatoryoffice
Show 44 more words
outhouseperemptoryperfectly surepositivepredestinedpredeterminedprerequisiteprivyrelentlessrequiredrequisiteresistlessrest roomsignificantstaplesuresure as deathsure as fatesure enoughsure-enoughtoilettrueunambiguousunavoidableuncontrollableundeflectableunderlyingunequivocalunerringunevadableunforgoableunivocalunmistakableunpreventableunstoppableunyieldingurgenturinalvitalwantedwashroomwater closetwcwithout choice
Adjective(23 words)
key learning conceptlogically necessarymandated textmandatory actmandatory assignmentmandatory community servicemandatory servicemandatory trainingminimum reading abilitymodalneededobligatoryobligatory assignmentobligatory requirementprerequisite courserequiredrequired courserequired servicerestrictiveunavoidable
Show 3 more words
vital carevital functionvital life processes
Noun(10 words)
more foundationalmost essentialmost essential datamost requirednecessityobbligatoobligatorequired textrequirementrequisite
Adverb(1 words)
most frequent value
Adjective(1 words)
Verb(2 words)
Choosing the right synonym
- Closest matches in this entry: absolute, apodictic, backhouse, basement, basic needs assessment.
- essential: 'Essential' frames necessity as identity, remove it and the thing stops being what it is. Breathing is essential; a deadline is necessary.
- Sentence evidence is available for necessary, so synonym choice can be checked against real usage rather than a flat word list.
- Ranking signals come from moby, derived_reverse, opengloss, wordnet, and related lexical sources.
Synonym selection checklist
- Match the part of speech before comparing meanings.
- Check whether the synonym changes intensity, formality, or emotional tone.
- Read the replacement inside the full sentence, not just beside "necessary".
- Prefer the clearest word over the most unusual word when writing for speed or comprehension.
When not to replace "necessary"
Keep "necessary" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Replacement workflow
1. Preserve meaning
Choose a synonym only if it keeps the core idea of "necessary" intact in the sentence you are editing.
2. Tune tone
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
3. Re-read context
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
Final fit check
After choosing a replacement for "necessary", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "necessary" or choose a simpler alternative from the closest-match group.
How these synonyms differ
- essential - 'Essential' frames necessity as identity, remove it and the thing stops being what it is. Breathing is essential; a deadline is necessary.
- indispensable - 'Indispensable' means you literally cannot do without it. It implies that no substitute exists, this person or thing is irreplaceable.
- mandatory - 'Mandatory' is the strongest form of required, backed by rules, laws, or authority. There's no room for personal judgment.
- required - 'Required' is external and often bureaucratic, someone or some system has mandated it. Necessity can come from within; requirements come from without.
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
7 entriesdescriptive termessential attributeessential criterionlogical propertynecessary relationqualitative propertything
More specific
4 entriesCollocations
6 entriesabsolutely necessarynecessary conditionnecessary fornecessary prerequisitepractically necessarystrictly necessary
Inflections
2 entriesmore necessarymost necessary
Derivations
3 entriesAntonyms
1 entriessimilar
9 entriesSample sentences
18 total sentences available.
It is necessary for you to see a doctor at once.
Source: tatoeba (15889)
It is necessary for you to start now.
Source: tatoeba (16139)
It is necessary that you start at once.
Source: tatoeba (16149)
Showing 4 of 18 available sentences.
Common questions
What are the closest synonyms for "necessary"?
Closest matches include absolute, apodictic, backhouse, basement, basic needs assessment.
How is "essential" different from "necessary"?
'Essential' frames necessity as identity, remove it and the thing stops being what it is. Breathing is essential; a deadline is necessary.
How should I check whether a synonym fits "necessary"?
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.