Optional
/ˈɒp.ʃə.nəl/
Antonyms for "optional" (326 found)
Adjective(143 words)
basic english grammarbasic needsbasic nourishmentbasic teaching conceptbinding agreementbinding clausebinding legal rulebinding vowboundenbuiltincentralcertain benefitcompelling casecompelling direct evidencecompelling new evidencecompulsory assessmentcompulsory examcompulsory laborcompulsory marriagecompulsory task
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constant companionconstitutivecore curriculum areacore learning importancecore modulecourt-directedcritical art fieldcritical care equipmentcritical descriptorcritical reviewcrucialcrucial evidencecrucial factorcrucial momentdecretivedirective actiondirective languagedistrict-mandated scheduledueelementalembedded systememergency procedureenforceableessential biological functionessential biology conceptessential conceptessential goodsessential ideaessential keywordessential micronutrientessential nutrientessential partessential questionsessential service provisionessential skills prioritizationexigentforced responsefoundational pedagogical conceptfundamental constantfundamental ecological principlesfundamental physical lawgoverning authority guidelinesgovernment-mandatedgovernment-mandated programgrammatical requirementimmediate eventimpellentimportantimportant matterimportant personal traitimposed goalinalienableincumbent arrangementindispensableineluctableinescapableinherent orderinstrumental duetintegral governorinvaluableinvoluntarykey argumentkey learning conceptkey scenelegal obligationmain thememandated servicemandated textmandatory actmandatory assignmentmandatory attendancemandatory biology unitsmandatory clausemandatory community servicemandatory policymandatory servicemandatory testingmandatory trainingminimum elementnecessaryneedfulnormativenormative conformitynorwegian grunnobligatedobligatory assignmentobligatory provisionobligatory readingobligatory requirementobligatory ruleobligatory safetyofficial mandateonerousperemptorypivotal turning-pointprerequisite courseprimary indexprimary languagesprimary subjectpushierregulatory filingsregulatory requirementrequired courserequired readingrequired servicesecond-language student needsshared normssocial obligationstandard beliefstandard procedurestate coercionstatutory corpusstatutory guidelinestatutory guidelinesstatutory requirementsunavoidableurgenturgent issueurgent requestvitalvital carevital functionvital life processes
Adverb(3 words)
Determiner(2 words)
most forced readingmost school-subject
Noun(130 words)
accounting materialitybasebase formsbase the database wordbasic needs assessmentbedrockbindingbinding contractbinding effectbinding instrumentbottombuilding blockcardinal numbercatalan obligaciócentral focuscoercive tacticcommunity-service activitycommunity-service programcommunity-service work
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componentcomputing infrastructureconscriptingcorecore coursecore curriculumcore historical conceptcore life science conceptcore materialcore school subjectscore subjectcourt orderedcourt ordered servicecourt-ordered servicecourt-ordered taskcritical pointcrucial decisiondeliverabledesign-constraining criteriadevoirdirectivedirective leadershipdistrict mandated lesson planemergency resupplyenforcingessentialessential life science conceptessential questionessential readingestablish weekly patternforced marchforced march trainingforced readingforces readingforcingfoundational conceptfundamentalfundamental forcegovernment ministriesgovernmentally mandatedgraduation required servicegraduation requirementgrounding rodhaberhavehothrimmediate issuesimperativeimperative formimperative moodimportance standardincumbentintegralintegral calculusitalicizingkey featurekeystonekeystone effectlearning pointlegal orderlegally mandatedlegally requiredlife sustaining processload bearing framemain pointmainstaymaintenance schedulemandatarymandatingmaster disconnectmoral obligationmore compulsorymore mandatorymore obligedmost essentialmost essential datamost forcedmost requiredmustnecessary conditionnecessary conditionsneedneedsobbligatoobligatoordered listpolicy directedprerequisitepressingprimespriority concernspublic noticepublicly mandatedregularly scheduledrequire students to completerequired textrequired-reading assignmentrequired-reading schedulerequirementrequiringroyal edictset beliefsstandard featurestate law code provisionsstatutorily mandatedstrictly necessarystudent force readingthe onlytrophically importantwater daily
Preposition(1 words)
of prime importance