ZebraWords.com - The Definition of 'Obligatory', Synonyms of 'Obligatory' & More on 'Obligatory'

1. WordNet® 3.0 (2006)

obligatory
    adj 1: morally or legally constraining or binding; "attendance
           is obligatory"; "an obligatory contribution" [ant:
           optional]
    2: required by obligation or compulsion or convention; "he made
       all the obligatory apologies"

2. The Collaborative International Dictionary of English v.0.48

Obligatory \Ob"li*ga*to*ry\, a. [L. obligatorius: cf. F.
   obligatoire.]
   Binding in law or conscience; imposing duty or obligation;
   requiring performance or forbearance of some act; -- often
   followed by on or upon; as, obedience is obligatory on a
   soldier.
   [1913 Webster]

         As long as the law is obligatory, so long our obedience
         is due.                                  --Jer. Taylor.
   [1913 Webster]

Thesaurus Results for Obligatory:

1. Moby Thesaurus II by Grady Ward, 1.0

absolute, binding, choiceless, compulsory, conclusive, de rigueur, decisive, decretory, demanded, dictated, entailed, essential, exigent, final, hard-and-fast, imperative, imperious, importunate, imposed, incumbent, indispensable, inevitable, involuntary, irrevocable, mandated, mandatory, must, necessary, necessitous, peremptory, prescript, prescriptive, required, requisite, ultimate, urgent, without appeal, without choice

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