The most common Korean word for “strong” is 세다 (seda). There are 2 more words with a similar meaning — compare them below. 「strong」는 한국어로 세다.
turn white
TOPIK 2 · verb
to be strong; to be powerful
TOPIK 2 · adjective
to be strong; to be sturdy; healthy
TOPIK 2 · adjective
Words and levels: TOPIK I essentials (National Institute of Korean Language standard curriculum, KOGL Type 1) · examples: Cheesepotato