noun
ever-victorious; invincible
A yojijukugo meaning to win every battle; used for consistent, overwhelming victory in competition, business, or personal challenges.
彼はビジネスの世界で百戦百勝の実績を誇っている。
He boasts a record of ever-victorious success in the business world.
百戦百勝を目指すよりも、時には負けから学ぶことも大切だ。
Rather than aiming for invincibility, sometimes it's important to learn from defeat.