© 2026 Sloth Lingo. Learn easy. Lounge wisely.

retroactively

Upper-Intermediate (B2)

IPA: /ˌrɛtrəʊˈæktɪvli/

KK: /ˌrɛtroʊˈæktɪvli/

adverb
Definition

Done after something has happened, affecting things that occurred earlier.


Example

The new law was applied retroactively, changing the outcomes of previous cases.


Conversation
Sloth A
Did you hear that the company is changing the policy retroactively?
Sloth B
Yeah, I saw that! It seems a bit unfair to apply changes to past events.
Sloth A
I know, right? It makes it confusing for everyone involved.
Sloth B
Exactly! I wish they would just make changes from now on.

Synonyms & Antonyms
Synonyms
backward
previously
afterward
Antonyms
prospectively
forward
later
Root Explanation

Retroactively → It is formed from "retro-" (meaning backward) and "act" (from Latin "agere", meaning to do or to act) and the suffix "-ively" (meaning in a manner). The word "retroactively" means acting backward in time, often referring to applying a law or decision to a time before it was enacted.

Memory Tip

Think of 'backward' ('retro-') actions ('act') that apply to a previous time — that's what retroactively means.

Visually Confused Words
refractively
detractively
reactively
restrictively
restoratively
reprobatively
reiteratively
prerogatively
Is this page helpful?