the ability to be relied on or depended on, as for accuracy, honesty, or achievement.

Sometimes re·li·a·ble·ness.

Origin of reliability

Related formsnon·re·li·a·bil·i·ty, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reliability

Contemporary Examples of reliability

Historical Examples of reliability

Word Origin and History for reliability

1816, from reliable + -ity.

Online Etymology Dictionary, © 2010 Douglas Harper