adj. un·wor·thi·er, un·wor·thi·est
a. Insufficient in worth; undeserving: a bad plan unworthy of our consideration.
b. Lacking value or merit; worthless.
2. Not suiting or befitting: "The acquaintances she had already formed were unworthy of her" (Jane Austen).
3. Vile; despicable.
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.