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operational

[op-uh-rey-shuh-nl]
adjective
  1. able to function or be used; functional: How soon will the new factory be operational?
  2. Military.
    1. of, relating to, or involved in military operations.
    2. on active service or combat duty: All units of the command are operational.
  3. of or relating to operations or an operation.
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Origin of operational

First recorded in 1920–25; operation + -al1
Related formsop·er·a·tion·al·ly, adverbnon·op·er·a·tion·al, adjectivepre·op·er·a·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for nonoperational

nonoperational

adjective
  1. not in working order or ready to use
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operational

adjective
  1. of or relating to an operation or operations
  2. in working order and ready for use
  3. military capable of, needed in, or actually involved in operations
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Derived Formsoperationally, 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

Word Origin and History for nonoperational

operational

adj.

1922, "pertaining to operation," from operation + -al (1). Meaning "in a state of functionality" is from 1944.

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Online Etymology Dictionary, © 2010 Douglas Harper