しんけん真剣shinken
1.

A state of being fully committed and engaged in an activity, demonstrating sincerity and determination without any hint of deception or playfulness.

2.

Describes a situation or mindset where one is approaching tasks or challenges with utmost seriousness, often implying that failure could lead to significant consequences.

3.

Refers to the quality of being genuinely invested in one’s actions, typically reflecting a strong sense of responsibility and dedication.

4.

Denotes a specific type of sword that is capable of causing real harm, contrasting with training swords that are used for practice.

Example:

ジョージは勉強に真剣でない。

しんけんしょうぶ真剣勝負shinkenshoubu
1.

A contest or competition that is conducted with complete seriousness and commitment, emphasizing genuine effort and intention.

2.

A duel or competition where participants are fully focused and dedicated, often involving actual stakes or consequences.

3.

An engagement or challenge approached with utmost sincerity and resolve, reflecting a true battle of skills or wits.

Example:

おやおや。いかな体育の授業といえど・・・真剣勝負の意気込みで臨まなければ、いざ実戦と言う時に役に立ちませんよ。