- Xerantic Adj
- Xerarch Adj
- Xeric Adj
- Xerodermatic Adj
- Xeroflorous Adj
- Xerographic Adj
- Xeromorphic Adj
- Xeronic Adj
- Xerophilous Adj
- Xerophthalmic Adj
- Xerothermic Adj
- Xerotic Adj
- Xeroxed Adj
- Xiphisternal Adj
- Xiphocostal Adj
- Xiphoid Adj Noun
- Xiphoidal Adj
- Xiphophyllous Adj
- XML Noun Adj
- Xylic Adj
- Xylocarpous Adj
- Xylographic Adj
- Xyloid Adj
- Xylophagous Adj
- Xylotomous Adj
- Yachty Adj Noun
- Yakut Noun Adj
- Yankee Noun Adj
- Yankeefied Adj
- Yankeeish Adj
- Yawning Noun Adj
- Yawping Noun Adj
- Yclept Adj Verb
- Year-end Adj Noun
- Year-round Adj Adv
- Yearend Adj Noun
- Yearling Noun Adj
- Yearlong Adj
- Yearly Adj
- Yearning Noun Adj
- Yeasted Adj
- Yeasty Adj
- Yellow Adj Noun Verb
- Yellow-vented Adj
- Yellowbellied Adj
- Yellowed Adj
- Yellowing Noun Adj
- Yellowish Adj
- Yellowy Adj
- Yemeni Adj Noun
- Yemenite Adj Noun
- Yeomanly Adj Adv
- Yester Noun Adj
- Yestern Adj Noun
- Yiddish Adj Noun
- Yieldable Adj
- Yielding Noun Adj
- Yogic Adj
- Yoked Adj
- Yokeless Adj