This is the 5910th most frequent Japanese word.
むとう
"むとう" (無党) means "nonpartisan" or "independent" (not affiliated with any political party).
むとう in this sentence means 'unopposed' or 'without opposition', indicating no competitors were against him in the election.
彼は選挙でむとうで当選しました。
He was elected unopposed in the election.
むとう, derived from 無当, can imply 'irrelevance' or 'lack of pertinence', suggesting the argument lacks appropriateness or connection.
それはむとうな議論です。
That is an irrelevant discussion.
むとう is used here to indicate something is not to the point or unrelated, showing critique on the precision or relevance of the answer.