Fainted is a verb that is commonly used to describe someone losing consciousness suddenly with a temporary loss of consciousness due to a sudden lack of blood flow to the brain. However, there are some synonyms that can be used in place of fainted to convey the same meaning. Some synonyms for fainted include passed out, blacked out, swooned, collapsed, keeled over, and lost consciousness. These words are useful when describing a situation where an individual suddenly loses consciousness due to a medical condition, dehydration, or any other cause. It is important to use the right words to accurately describe events, in order to avoid any confusion or misunderstanding.