Someone who is determined has firmly decided to do something and will not let difficulties stop them. It can also describe something that has been decided or caused by particular factors.
Past participle of "determine," from Latin "determinare" meaning "to decide" or "set limits." The adjective sense of strong-willed grew from the idea of having a settled decision.
To be determined is to live inside a decision that’s already been made. That’s why determined people often seem calm but unstoppable—they’re no longer debating, just acting.
Complete word intelligence in one call. Free tier — 50 lookups/day.