earnestly; intently; wholeheartedly
Describes doing something with complete focus, without distraction or other thoughts. Often used with verbs like 取り組む, 打ち込む, or 祈る. The variant 余念もなく is also common.
See also: 余念もなく (よねんもなく)
He is earnestly engaged in his research.
The players concentrated intently on the game.
Standard kanji spelling.
Alternate kanji spelling using なく instead of 無く.
From 余念 (other thoughts) + 無く (without). The exact historical derivation is uncertain, but the phrase is conventionally used to mean 'without distraction'.