so small, trifling, or unimportant that it may safely be neglected or disregarded: The extra expenses were negligible.
Origin of negligible
1820–30;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
< Latin neglig(ere
) to neglect
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for non-negligible
Derived Formsnegligibility or negligibleness, nounnegligibly, adverb
so small, unimportant, etc, as to be not worth considering; insignificant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for non-negligible
"capable of being neglected," 1819, from negligence + -ible. Related: Negligibly; negligibility.
Online Etymology Dictionary, © 2010 Douglas Harper