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obligatory

 - 3 dictionary results

o⋅blig⋅a⋅to⋅ry

  [uh-blig-uh-tawr-ee, -tohr-ee, ob-li-guh-]
Use obligatory in a Sentence
–adjective
1. required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
2. incumbent or compulsory (usually fol. by on or upon): duties obligatory on all.
3. imposing moral or legal obligation; binding: an obligatory promise.
4. creating or recording an obligation, as a document.
Origin:
1425–75; late ME < LL obligātōrius binding, equiv. to L obligā(re) to bind (see obligate ) + -tōrius -tory 1

Related forms:
ob⋅lig⋅a⋅to⋅ri⋅ly  [uh-blig-uh-tawr-uh-lee, ‑tohr‑, ob-li-guh‑, uh-blig-uh-tawr-uh-lee, ‑tohr‑, ob-li-guh‑] , adverb
ob⋅lig⋅a⋅to⋅ri⋅ness, noun

Synonyms:
2. necessary, imperative.

Antonyms:
2. voluntary.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To obligatory
o·blig·a·to·ry   (ə-blĭg'ə-tôr'ē, -tōr'ē, ŏb'lĭ-gə-)   
adj.  

  1. Morally or legally constraining; binding.

  2. Imposing or recording an obligation: a bill obligatory.

  3. Of the nature of an obligation; compulsory: Attendance is obligatory. Mathematics is an obligatory course.

  4. Biology Obligate.

o·blig'a·to'ri·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: oblig·a·to·ry
Pronunciation: &-'blig-&-"tOr-E, ä-, -"tor- also 'äb-li-g&-
Function: adjective
: OBLIGATE 1 —oblig·a·to·ri·ly /&-"blig-&-'tOr-&-lE, ä-, -'tor-also "äb-li-g&-/ adverb
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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