1. Capable of expanding or tending to expand.
2. Broad in size or extent; comprehensive: expansive police powers.
3. Open and communicative; talkative or effusive: Wine made the guest expansive.
4. Grand in scale: an expansive lifestyle.
ex·pansive·ness, ex′pan·sivi·ty (ĕk′spăn-sĭvĭ-tē) n.
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.