ナンセンス (nansensu) Japanese meaning: nonsense | Kotomora。
His explanation was complete nonsense.
I can't believe such a nonsensical story.
Usage patterns
ナンセンスな〈事〉a nonsensical thing/idea
I don't want to hear such a nonsensical story.
ナンセンスな〈物〉something in terrible taste (fashion, etc.)
His flashy outfit was laughed at as being in terrible taste.
〈事〉はナンセンスだthat (idea/rule) is nonsense
I think this rule is nonsense.