Out-lasted means to survive or endure beyond a particular time, period or an event. Its antonyms are typically words that indicate failure, cessation or premature end. Some antonyms of out-lasted are: succumbed, surrendered, gave out, expired, perished, conceded, yielded, quit, collapsed, disintegrated, disappeared, demised, vanished, caved in, fell apart, died out and passed. These antonyms indicate that the subject could not withstand the test of time or the event and eventually gave up or perished. While out-lasted is a positive trait, its antonyms have a negative connotation and are often used to describe failure or disappointment.