GMAS 5th Grade English Language Arts (ELA) Practice Test 2026 - Free ELA Practice Questions and Study Guide

Antonyms are words with opposite meanings. Ancient means very old, coming from a long time ago. The opposite idea is something not old at all—recent or just created. The word that fits that idea most directly is “new,” since it contrasts with old in everyday use. While “modern” can be seen as not old in some contexts, it centers on being up-to-date rather than simply not ancient. “Old” is a synonym of ancient, and “ancient” is the same word, so they aren’t opposites. So the best choice is the word that clearly signals recently made or occurred: new.