The antonyms for the phrase "bursts into flames" could be terms relating to extinguishing or dampening the fire. Some examples of these antonyms could include "puts out," "smothers," "quenches," "suppresses," "douses," "extinguishes," or "snuffs out." These words all imply the action of stopping or preventing the ignition of a fire. Alternatively, other antonyms might describe a lack of spark or ignition altogether, such as "stays cool," "remains inactive," "stays calm," or "stays dormant." These words suggest a state of calmness and safety, with no immediate threat of fire or combustion.