Tetrospect 

tetrəˌspekt/ from the latin Tetra meaning 'foul' and Spect meaning 'to see'

adjective.

1.to have a poor or negative outlook on situations or events, especially in regards to those which have already passed.

2. a tendency for perceiving the world in such a way as to emphasizes bleak or dismal outcomes to the exclusion of positive alternatives

synonyms: pessimism, cynicism

In tetrospect, it was inevitable that today was going to be a bad day.
Murphy's Law was based on a man with a truly tetrospective outlook.

Tetrospect by BIOS-Pherecydes September 22, 2016

retrospective sickie 

When a sick day is taken after being sick, so one can actually enjoy having the day off work.

- Jane: Bob, you look terrible! You should have stayed at home today.
- Bob: Don't worry Jane, I'll be taking a retrospective sickie tomorrow.

retrospective sickie by AustralianWorkEthic April 20, 2010

retrospect 

Looking back and seeing how dumb you were

In retrospect, I shouldn't have jumped off the skyscraper

retrospect by EthanTheMightyCheese May 9, 2003

retrospectacles 

Noun. what you wear when you analyze events,or dissect previous errors, with the benefit of hindsight.

Wearing my retrospectacles, planning a vacation in Baghdad was not my best idea.

retrospectacles by BigJimBob July 20, 2008

retrospectoscope

Medical imaging device for looking at the past and finding out what could have been done better.

Nurse - If we had not given Mrs Jones that dose of morphine I don't think she would have stoped breathing.

Dr - Stop using your retrospectoscope!

retrospectoscope by Muggs August 28, 2006

Retrospect 

a review of a past corse of events

in retrospect, i actually DID eat ur bacon, and im real sorry

Retrospect by pseudonym = bacon bits June 16, 2018

retrospectacles 

The (usually rose-colored) glasses which one views the past. Viewing through retrospectacles causes one to overlook past problems or disasters and remember only the good aspects. Thus, retrospectacles are often the device which allows one to intentionally repeat the same ill-advised course of action.

Adam: "I know she cheated on me the last 5 times we got together, but we had some really good times too. Maybe this time will be different, I think I'll give her a call"

Bob: "Adam you idiot, put down the phone and take off your retrospectacles"

retrospectacles by tstampy July 21, 2009