Sufficient to satisfy a requirement or meet a need. See Synonyms at sufficient.
[Latin adaequātus, past participle of adaequāre, to equalize : ad-, ad- + aequāre, to make equal, from aequus, equal.]
ade·qua·cy (-kwə-sē), ade·quate·ness n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.