retrospectively

[ re-truh-spek-tiv-lee ]
/ ˌrɛ trəˈspɛk tɪv li /
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adverb

with contemplation of past situations, events, etc.: You should examine your relationship retrospectively.
with retrospective effect; retroactively: The law operates retrospectively.

Origin of retrospectively

First recorded in 1600–10; retrospective + -ly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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