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negligible

[neg-li-juh-buh l]
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adjective
  1. so small, trifling, or unimportant that it may safely be neglected or disregarded: The extra expenses were negligible.
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Origin of negligible

1820–30; < Latin neglig(ere) to neglect + -ible
Related formsneg·li·gi·bil·i·ty, neg·li·gi·ble·ness, nounneg·li·gi·bly, adverbnon·neg·li·gi·bil·i·ty, nounnon·neg·li·gi·ble, adjectivenon·neg·li·gi·ble·ness, nounnon·neg·li·gi·bly, adverbqua·si-neg·li·gi·ble, adjectivequa·si-neg·li·gi·bly, adverb
Can be confusedneglectful negligible
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for non-negligible

negligible

adjective
  1. so small, unimportant, etc, as to be not worth considering; insignificant
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Derived Formsnegligibility or negligibleness, nounnegligibly, 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 non-negligible

negligible

adj.

"capable of being neglected," 1819, from negligence + -ible. Related: Negligibly; negligibility.

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Online Etymology Dictionary, © 2010 Douglas Harper