Unopposed means with nobody standing against you. Elected unopposed, an unopposed motion, returned unopposed.
In an election it means only one candidate stood, so no vote is held at all — which is common in local government and rare at national level. It is also used of an advance that meets no resistance. Note the un- prefix and oppose beneath it.
1adjectiveunopposedWith nobody standing against you.
“The striker ran unopposed towards the goal and scored easily.”
unopposed is a state of no opposition.
From un- + opposed.
Etymology from Wiktionary, CC BY-SA