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inadequate

[in-ad-i-kwit] /ɪnˈæd ɪ kwɪt/
adjective
1.
not adequate or sufficient; inept or unsuitable.
2.
Psychiatry. ineffectual in response to emotional, social, intellectual, and physical demands in the absence of any obvious mental or physical deficiency.
Origin of inadequate
1665-1675
1665-75; in-3 + adequate
Related forms
inadequately, adverb
Synonyms
1. inapt, incompetent; incommensurate; defective, imperfect, incomplete.
Antonyms
1. sufficient.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for inadequate

inadequate

/ɪnˈædɪkwɪt/
adjective
1.
not adequate; insufficient
2.
not capable or competent; lacking
Derived Forms
inadequacy, noun
inadequately, 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
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Word Origin and History for inadequate
adj.

1670s; see in- (1) "not, opposite of" + adequate. Related: Inadequately.

Online Etymology Dictionary, © 2010 Douglas Harper
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20
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