This is the 10262nd most frequent Russian word.
бойцовской
"Fighting" or "fighter's" (adjective, relating to combat or a fighter).
The word 'бойцовскую' is used here as an adjective modifying 'решимость', emphasizing the determined and combative nature.
Его стиль в боевых искусствах всегда напоминал бойцовскую решимость.
His style in martial arts always resembled a fighter's determination.
The word 'бойцовской' describes the environment ('среде') as combative or related to fighting, highlighting its competitive nature.
Она выросла в бойцовской среде, где соревновательный дух ценился превыше всего.
She grew up in a competitive environment where the spirit of competition was highly valued.
The word 'бойцовской' modifies 'командой', indicating that the team was associated with fighters or had a 'fighter' quality, specifically in boxing.