unprecedented
unp·re·ce·dented
adjective
1.
- “an unprecedented expansion in population and industry”
Origin
From un- + precedent + -ed.
Related words
Word family
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.