ac·cept·a·ble  ( ăk-s ĕp t ə-b əl)
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adj.1. Adequate to satisfy a need, requirement, or standard; satisfactory: an acceptable excuse; acceptable behavior. See Synonyms at sufficient. 2. Satisfactory but not superior; passable: The restaurant was acceptable but did not live up to its reputation. See Synonyms at average.
ac·cept′a·bili·ty, ac·cepta·ble·ness n. ac·cepta·bly adv. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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:
Indo-European Roots
Semitic Roots
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.
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