na-adjective, noun
trifling; slight; insignificant
Describes something of very little importance, value, or degree. Rare in modern conversation; more common in formal or written language.
その問題は軽少なものだったので、すぐに解決した。
The problem was trifling, so it was resolved quickly.
軽少の差で勝負が決まった。
The match was decided by a slight difference.