Anti-
De-/Dis-
Non-/In-/Im-/Il-/Ir-
Mis-
Over-
100

When you aren't being social 

Antisocial 

100

To take apart/to unbuild

Deconstruct

100

not fiction/it is true

nonfiction 

100

Wrongly understood

misunderstood

100

Think too much

Overthink

200

expect something and take action in expectation

Anticipate

200
To not agree 

disagree

200

Can't happen/not possible 

impossible 

200

Had the wrong information 

misinformed or misinformation

200

Thought of/given too much credit

overrated 
300

Medicine that fights against microorganisms growth.

Antibiotic

300

to not be/have active

Deactivate 

300

not legal/against the law

illegal 

300

thought wrong about/ judged wrongly 

Misjudge

300

Someone who's dramatic does this

Overreact 

400

a disappointing end to an exciting or impressive series of events.

Anticlimax

400

to not respect 

disrespect 

400

want more, can't resist

irresistible

400

Heard incorrectly 

Misheard

400

Work too much

overworked 

500

Fights against freezing

Antifreeze

500

To not have the advantage 

disadvantage

500

not real/Makes no sense

nonsense

500

Not managed correctly 

Mismanage/mismanaged

500

Too many clouds

overcast