| instanter(adverb, directly, immediately, rapidly, instantly) |
| instantly(adverb, directly, immediately, rapidly) |
| like now(expression, directly, immediately, rapidly, instantly) |
| now or never(expression, idiom, directly, rapidly, instantly) |
| on the dot(expression, idiom, directly, rapidly, instantly) |
| on the double(expression, idiom, directly, rapidly, instantly) |
| on the spot(expression, idiom, directly, rapidly, instantly) |
| promptly(adverb, directly, immediately, rapidly, instantly) |
| rapidly(directly, immediately, instantly, shortly, forthwith) |
| right now(expression, directly, immediately, rapidly, instantly) |
| shortly(directly, immediately, rapidly, instantly, forthwith) |
| simultaneously |
| soon(directly, immediately, rapidly, instantly) |
| soon afterward(expression, directly, immediately, rapidly, instantly) |
| straight away(expression, directly, immediately, rapidly, instantly) |
| straight off(expression, directly, immediately, rapidly, instantly) |
| straightaway |
| summarily(directly, immediately, rapidly, instantly) |
| then and there(expression, idiom) |
| thereupon(directly, immediately, rapidly, instantly) |