Participial adjective derived from the past participle of the verb "bolster"; used attributively and predicatively.
The bolstered defenses made the city more secure.
Укреплённые оборонительные сооружения сделали город более безопасным.
The bolstered argument convinced the jury.
Поддержанный аргумент убедил присяжных.
Used to describe something that has been reinforced or supported.