invincible
adj.adj. too powerful or strong to be defeated or overcome. You use this to describe someone or something that cannot be beaten.
adj. too powerful to be defeated, overcome, or subdued. Often used predicatively after linking verbs like 'feel' or 'seem'.
The champion felt invincible after winning ten matches in a row.
Despite their small size, the army believed their superior strategy made them invincible on the battlefield.
The myth of an invincible fortress was finally shattered when the city fell after a three-month siege, proving that even the most formidable defenses have their breaking point.
From Middle French invincible, from Latin invincibilis (“unconquerable”), from in- (“not”) + vincibilis (“conquerable”), from vincere (“to conquer”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Often follows linking verbs such as 'feel', 'seem', or 'appear'.
Last updated May 6, 2026