いさ勇isaましいmashii
1.
Exhibiting a strong and determined attitude in the face of danger or difficulties, actively engaging in challenging situations without fear.
2.
Taking bold actions regardless of potential criticism or ridicule from others, often with an audacious or provocative approach.
3.
Inspiring or uplifting others with a robust and vigorous spirit, often associated with a sense of grandeur or heroism.
4.
Demonstrating a proactive willingness to take initiative or confront challenges head-on, displaying an eager mindset towards undertaking tasks or goals, even if they seem daunting.
Example:
一人で原始林へ乗り込もうとは君はなんて勇 ましいんだ。