WordReference Random House Learner's Dictionary of American English © 2017
in•dis•pen•sa•ble /ˌɪndɪˈspɛnsəbəl/USA pronunciation   adj. 
  1. necessary or essential:A computer is indispensable to many writers.
in•dis•pen•sa•bil•i•ty /ˌɪndɪˌspɛnsəˈbɪlɪti/USA pronunciation  n. [uncountable]
in•dis•pen•sa•bly, adv. See -pend-.

WordReference Random House Unabridged Dictionary of American English © 2017
in•dis•pen•sa•ble  (in′di spensə bəl),USA pronunciation adj. 
  1. absolutely necessary, essential, or requisite:an indispensable member of the staff.
  2. incapable of being disregarded or neglected:an indispensable obligation.

  1. a person or thing that is indispensable.
in′dis•pen′sa•bili•ty, in′dis•pensa•ble•ness, n. 
in′dis•pensa•bly, adv. 
  • Medieval Latin indispēnsābilis not subject to dispensation. See in-3, dispensable
  • 1525–35
    • 1.See corresponding entry in Unabridged needed. See  necessary. 

Collins Concise English Dictionary © HarperCollins Publishers::

indispensable /ˌɪndɪˈspɛnsəbəl/ adj
  1. absolutely necessary; essential
  2. not to be disregarded or escaped: an indispensable role
  1. an indispensable person or thing

ˌindisˌpensaˈbility, ˌindisˈpensableness n ˌindisˈpensably adv

'indispensable' also found in these entries:

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