- required as a matter of obligation; mandatory: A reply is desirable but not obligatory.
- incumbent or compulsory (usually followed by on or upon): duties obligatory on all.
- imposing moral or legal obligation; binding: an obligatory promise.
- creating or recording an obligation, as a document.
Origin of obligatory
SynonymsSee more synonyms for on Thesaurus.com
Examples from the Web for obligatory
There was also the obligatory shopping spree at the F.A.O. Schwarz toy store across from Central Park.Exclusive: Michael Jackson Hit With New Sex Abuse Claim
May 12, 2014
Yes, they showed up, wore their “Team Mitch” shirts, and joined in the obligatory anti-Obama chants.McConnell's Fancy Farm Monster Comes Back to Haunt Him
August 4, 2013
I actually quit prefacing my Ralph Nader screeds with the obligatory he-gave-us-the-seatbelt boilerplate years ago.Ralph Nader Has Truly Lost It
July 29, 2013
Lean In, by Sheryl Sandberg (Knopf) Obligatory ‘Power’ SubtitleWomen, Work, and the Will to Lead.Five Girl-Power Books Exactly Like Sheryl Sandberg’s ‘Lean In’
March 29, 2013
Romney, in his obligatory red, white, and blue uniform, did have some well-crafted zingers, but none were particularly poetic.Five Takeaways from Mitt Romney’s Convention Speech
August 31, 2012
In France and in England, it is obligatory also to attend vespers on the Sundays.Roman Catholicism in Spain
The study of these three languages is obligatory in the secondary schools.Holland, v. 1 (of 2)
Edmondo de Amicis
For this is due to a confusion of the good or generous with the obligatory.A History of Mediaeval Jewish Philosophy
They made an obligatory and superficial search through the coal cellar.Just Patty
The presence of women in the synagogue was in many instances not obligatory.Luna Benamor
Vicente Blasco Ibez
- required to be done, obtained, possessed, etc
- of the nature of or constituting an obligation
Word Origin and History for obligatory
c.1400, from Old French obligatoire "creating an obligation, obligatory," and directly from Late Latin obligatorius "binding," from obligat-, past participle stem of obligare (see oblige).