WordReference Random House Learner's Dictionary of American English © 2015
in•ad•e•quate /ɪnˈædɪkwɪt/USA pronunciation adj.  not adequate or sufficient. in•ad•e•quate•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

inadequate /ɪnˈædɪkwɪt/ adj
  1. not adequate; insufficient
  2. not capable or competent; lacking

inˈadequacy n inˈadequately adv

'inadequate' also found in these entries:

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