| unhesitatingly(adverb, directly, immediately, easily, rapidly) |
| at once(expression, adverb, directly, immediately, easily) |
| immediately(adverb, straight, freely, directly, easily) |
| promptly(adverb, straight, directly, immediately, easily) |
| right away(expression, adverb, directly, immediately, easily) |
| without delay(expression, adverb, directly, immediately, rapidly) |
| straightaway(adverb, straight, immediately, promptly, unhesitatingly) |
| summarily(adverb, directly, immediately, rapidly, instantly) |
| directly(adverb, straight, immediately, rapidly, instantly) |
| instantaneously(adverb, straight, directly, immediately, rapidly) |
| pronto(adverb, straight, directly, immediately, rapidly) |
| slick as whistle(expression, idiom, adverb, freely, immediately) |
| without a second thought(expression, idiom, adverb, unhesitatingly) |
| absence of difficulty |
| forthwith(adverb, directly, immediately, rapidly, instantly) |
| quickly |
| speedily(adverb, straight, freely, directly, immediately) |
| at the drop of a hat(expression, idiom, adverb, freely, immediately) |
| in a jiffy(expression, adverb, directly, immediately, easily) |
| in no time(expression, idiom, adverb, freely, immediately) |