unalarming a not alarming; assuaging alarm Usage(s) Steelmen expected, last week, to find their industry in its customary, unalarming summer doldrums. But not quite yet: encouraged by today's report of an unalarming 0. He put the radiation reading taken downwind from the plant at 1 millirem per hournot an alarming or unalarming level. Antonym(s) alarming