千慮一失 せんりょいっしつ せんりょのいっしつ mere slip by someone who is usually very careful; simple mistake by a wise person; point overlooked by a cautious person n yoji Advanced ➥
一昨々年 さきおととし さおととし さいととし いっさくさくねん two years before last (year); three years back (ago) n-adv n-t yoji Advanced ➥
九牛一毛 きゅうぎゅういちもう きゅうぎゅうのいちもう a drop in the bucket (ocean); a small fraction (of); trifle n yoji Advanced ➥