しすぎる・し過ぎる・為過ぎるshisugiru

1. ichidan verb, transitive verbto overdo; to do too much
   車くるまを運転うんてんする時ときはいくら注意ちゅういしてもしすぎることはない。↗

   You cannot be too careful when you drive a car.

• SynonymやりすぎるNeutralOverdoing something to the point of going too far, often with a critical 'that was too much' tone, as in 「冗談をやり過ぎる」; more colloquial than し過ぎる.
• Related行き過ぎるいきすぎるNeutralGoing too far or beyond a limit, as in 「行き過ぎた規制」; more abstract than し過ぎる, often said of systems or measures.
• Antonym控えめひかえめNeutralModerate and restrained, as in 「控えめにする」; the opposite of excess — holding back rather than overdoing.
• Antonym足りないたりないNeutralInsufficient or not enough — the opposite of doing too much; things fall short rather than go too far.

Use 「し過ぎる」 for doing an action to excess, as in 「勉強しすぎる」. Choose 「やり過ぎる」 for a critical 'went too far' tone, and 「行き過ぎ」 when a system or policy goes too far. 「足りない」 and 「控えめ」 are opposites: not enough, or restrained.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. ある行動こうどうや動作どうさを必要ひつよう以上いじょうに行おこなう。