The antonyms of 'be ablaze' are to be extinguished, to be doused, and to be smothered. To be extinguished means to put out a fire or a flame, whereas to be doused means to pour water or any other liquid on the fire or flame to extinguish it. To be smothered means to cover the fire with something to deprive it of oxygen it needs to burn, and thus to extinguish it. All these antonyms indicate putting out fire, which is necessary to prevent catastrophes, injuries or death that a spreading fire might cause. Therefore, knowing antonyms of the word 'be ablaze' is crucial for safety measures.