9 Grammatical Pitfalls


[man-duh-tawr-ee, -tohr-ee] /ˈmæn dəˌtɔr i, -ˌtoʊr i/
authoritatively ordered; obligatory; compulsory:
It is mandatory that all students take two years of math.
pertaining to, of the nature of, or containing a command.
Law. permitting no option; not to be disregarded or modified:
a mandatory clause.
having received a mandate, as a nation.
noun, plural mandatories.
Origin of mandatory
1655-65; < Late Latin mandātōrius. See mandate, -tory1
Related forms
mandatorily, adverb
nonmandatory, adjective, noun, plural nonmandatories.
unmandatory, adjective
1. requisite, exigent. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for mandatory
  • Doesn't seem cooked food is so mandatory to explain all this required energy and smaller teeth.
  • His charge carries a mandatory minimum sentence of three and a half years in prison and a maximum of 15 years.
  • They are determined based on the team's total final riding time and the last mandatory veterinary checks.
  • Its cost is only a few dollars a year and in many states it is mandatory.
  • Many of them have chosen to make participation mandatory.
  • Lifeboat drills are mandatory and will be enforced.
  • For this reason I hope it will be mandatory to do the training mission before playing any other match types.
  • There are no mandatory laws stating that you will have a set work week.
  • We need recycling to become mandatory.
  • His impending presidency has taken consumerism to another level, even in this less-is-mandatory economy.
British Dictionary definitions for mandatory


/ˈmændətərɪ; -trɪ/
having the nature or powers of a mandate
obligatory; compulsory
(of a state) having received a mandate over some territory
noun (pl) -ries
Also called mandatary. a person or state holding a mandate
Derived Forms
mandatorily, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mandatory

1570s, "of the nature of a mandate," from Late Latin mandatorius "pertaining to a mandator," from Latin mandatus, past participle of mandare (see mandate (n.)). Sense of "obligatory because commanded" is from 1818.

Online Etymology Dictionary, © 2010 Douglas Harper
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