simple past tense and past participle of fail-safe

Describing a form of examination etc in which the student either passes or fails, without receiving a specific mark or grade.

(astronomy) An event that ends the fusion lifetime of a large and massive star. It is a partial type-II supernova, where the collapse process occurs, but no significant rebound occurs, and the nascent black hole swallows the incoming implosion resulting in no outbound explosion or subsequent light burst.

simple past tense and past participle of fail at life

(Internet slang) To be or become trapped in poverty, or in a situation where someone is not doing anything productive with their lives; to become a loser.

Third-person singular simple present indicative form of fail at life

(finance, economics, politics) Deemed too important to the economy or polity to be allowed to “fail”, that is to be liquidated or to go bankrupt.

simple past tense and past participle of words fail someone.

(transitive, idiomatic) Of a person: to be incapable of describing something with words, especially due to fear, shock, or surprise.

A condition characterized by chronic pain after back surgery.