1. causing injury or blight
    especially affecting with sudden violence or plague or ruin

    e.g. the blasting effects of the intense cold on the budding fruit
           the blasting force of the wind blowing sharp needles of sleet in our faces
           a ruinous war

    Synonym: ruinous

2. unpleasantly loud and penetrating

    e.g. the blaring noise of trumpets
           shut our ears against the blasting music from his car radio

    Synonym: blaring