a. The act of preventing the accomplishment or fulfillment of something: the defense's frustration of their opponent's attempts to score.
b. The feeling or state of being frustrated: I couldn't get a real person to talk to and slammed down the phone in frustration.
2. Something that causes such a feeling or state: a job with many frustrations.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. 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.