slowly, slow, easy, tardily: without speed (`slow' is sometimes used informally for `slowly') "he spoke slowly", "go easy here--the road is slippery", "glaciers move tardily", "please go slow so I can see the sights"
late, belatedly, tardily: later than usual or than expected "the train arrived late", "we awoke late", "the children came late to school", "notice came so tardily that we almost missed the deadline", "I belatedly wished her a happy birthday"
