There are several synonyms for the word extinguishable, which means capable of being put out or extinguished. Some other words that can be used to describe something that is extinguishable include douseable, quenchable, blottable, and snuffable. These words all imply the ability to extinguish or put out a fire or flame. In addition, the term suppressible could also be used to describe something that can be extinguished or prevented from spreading. All of these words are useful in different contexts and can be used interchangeably to convey the same meaning as extinguishable.