Synonyms and Antonyms for Optional

Following is a list of 150 synonym words and phrases that are related to optional:

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3 Letter Words

optcas

4 Letter Words

opt.perk

5 Letter Words

extraslicebasic

6 Letter Words

choiceoptionadd-onopt-incustomluxuryexempt

7 Letter Words

optionsfeatureomittedspecial

8 Letter Words

electivecovenantprotocolintercomrequiredincludedintegralstandardsuitablemandatedexplicithonoraryneedlessleft outunchosen

9 Letter Words

ex gratiaselectivevoluntarymandatoryarbitraryalternatetell-taleelectivesoptionalsnecessaryessentialautomaticauxiliarypreferredsuboptionremovableancillaryspecifiedcomponentimportantnonforcedunobligednonchosenunomittedunexigent

10 Letter Words

selectablecompulsorypermissiveadditionalmoratoriumunofficialobligatorypreferableneccessarysuboptionsasteriskeddetachablemodifiableunoptionalunrequiredself-electunmandatedexpendablevolitionalunincludednonimposednoncrucialnonelectednonimplied

11 Letter Words

facultativealternativeconditionalrequirementoverridableappropriatepreferrablesuperfluousorientativenonelectivenonrequiredinnecessarynonoptionaluncompellednonmandatedspontaneousunessentialinessentialnonelectingunrequisiteunchoosablenonincludedunnecessaryunobligatednonelectionunrequiringnonentailed

12 Letter Words

nonmandatoryself-imposedpractitionerconfigurableprerequisitecustomizablesupplementaluncompulsorynonessentialunobligatorynonnecessarynonvoluntarynonspecifiedunvolitionalnonautomaticnonstatutoryunperemptorynonobligatednonelectoralnonoperative

13 Letter Words

nonobligatorydiscretionarynoncompulsoryindispensablesupplementarysemivoluntarynonvolitionalnonimperativenonstipulatednon-redundantunvolunteerednoninstructednoncurricularnonlegislatednonguaranteednondesignatedself-employed

14 Letter Words

unnecessitated

15 Letter Words

nonprescriptive

16 Letter Words

non-prerequisitenondiscretionary

Using this list of similar-meaning words, you can choose the best synonyms to replace optional in your sentences.

Additionally, you'll find antonyms included, perfect for when you need the complete opposite meaning of optional in your writing.