headstrong

Determined to do as one pleases, and not as others want.

Japanese Meaning

自分の思い通りに行動し、他人の意見に左右されない頑固さ。 / 自己中心的で、自分の意思を固持する性格。

Her headstrong refusal to follow the plan forced the team to find an alternative approach.

彼女の頑固な拒否により、チームは別の方法を見つけざるを得なかった。

Sense（1）

Determined to do as one pleases, and not as others want.

He was in that headstrong teenage phase when he felt like he knew everything.

more headstrong

（ comparative ）

most headstrong

（ superlative ）