1. Characterized by a lack of quiet, repose, or rest: spent a restless night.
2. Not able to rest, relax, or be still: a restless child.
3. Having or showing a persistent desire for change or action: "A restless feeling of guilt would always be present with him" (James Joyce).
4. Never still or motionless: the restless sea.
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:
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.