Antonyms of adj retroactive

2 senses of retroactive

Sense 1
retroactive (vs. proactive) -- (descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously)

proactive (vs. retroactive) -- (descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently; "proactive inhibition"; "proactive interference")

Sense 2
ex post facto, retroactive, retro -- (affecting things past; "retroactive tax increase"; "an ex-post-facto law"; "retro pay")

INDIRECT (VIA retrospective) -> prospective -- (of or concerned with or related to the future; "prospective earnings"; "a prospective mother"; "a prospective bride"; "the statute is solely prospective in operation")

Similarity of adj retroactive

2 senses of retroactive

Sense 1
retroactive (vs. proactive) -- (descriptive of any event or stimulus or process that has an effect on the effects of events or stimuli or process that occurred previously)

Sense 2
ex post facto, retroactive, retro -- (affecting things past; "retroactive tax increase"; "an ex-post-facto law"; "retro pay")
       => retrospective (vs. prospective) -- (concerned with or related to the past; "retrospective self-justification")