. intensity. The light hit us with such intensity that we ducked.. guilty. He's behaving like a guilty man.. vile. It was a vile business from beginning to end.. solemn. The ceremony is brief but solemn.. buckle. We could see his knees buckle after that last punch.. aloft. They always hold aloft the banner of revolution.. clatter. the clatter of iron wheels on cobblestones.. irregular. Your pulse is very irregular.. impulse. Optic nerve carries visual impulses to the brain.. once in a while. Once in a while she cooks dinner.