unopposing
adjEtymology From un- + opposing.
1
Not offering opposition; unresisting.
- A suit of ancient armor in a hall Stands like an unopposing sentinel; […]1875, Henry Abbey, "A Suit of Armor" (in The Galaxy, volume 19, page 377)
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.