Antonyms of adv quickly

1 of 3 senses of quickly

Sense 1
quickly, rapidly, speedily, chop-chop, apace -- (with rapid movements; "he works quickly")
       Antonym of slowly (Sense 1)
      => 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")

Synonyms of adv quickly

3 senses of quickly

Sense 1
quickly, rapidly, speedily, chop-chop, apace -- (with rapid movements; "he works quickly")

Sense 2
promptly, quickly, quick -- (with little or no delay; "the rescue squad arrived promptly"; "come here, quick!")

Sense 3
cursorily, quickly -- (without taking pains; "he looked cursorily through the magazine")