Un-, Non-, Dis-
Im-, In-, and Ir-
Co-, Com-, and Con-
Sym-, Syn-, and Sys
De- and Anti-
100

These are the word parts for the word 'disappear'

prefix: dis

root: appear

100

These are the word parts for the word 'irregular'

prefix: ir

root: regular

100

These are the word parts for the word 'contact'

prefix: con

root: tact

100

These are the word parts for the word 'system' (clue: root = tem)

prefix: sys

root: tem

100

These are the word parts for the word 'antifreeze'

prefix: anti

root: freeze

200

This is the meaning of the word 'unaware'

not aware

200

This is the meaning of the word 'improper'

not proper

200

This is the meaning of the word 'cooperate'

work together

200

This is the meaning of the word 'symphony' (clue: phony = sound)

with sound

200

This is the meaning of the word 'antiwar'

against war

300

This is a word containing the prefix 'non-'

nonsense, nondairy

300
This is a word containing the prefix 'in-'

invent, incorrect, incomplete

300

This is a word containing the prefix 'com-'

complete, combine

300

This is a word containing the prefix 'syn-'

synonym, synthetic

300

This is a word containing the prefix 'de-'

decrease, descend, demote, deport, depart, defrost, decode, deodorant

400

This is a sentence using the word 'dishonest'

I was dishonest to my parents when I told them I completed my homework but didn't. 

400

This is a sentence using the word 'irresponsible'

I was irresponsible when I did not do my homework.

400

This is a sentence using the word 'concern'

I was concerned for my friend who broke her leg.

400

This is a sentence using the word 'synonym'

Happy and glad are synonyms because they have similar meanings.

400

This is a sentence using the word 'antibiotic'

The antibiotic helped me feel better when I was sick.

500

This is a synonym for the word 'unkind'

mean

500

This is a synonym for the word 'immature'

childish

500

This is a synonym for the word 'combine'

together, join

500

This is a synonym for the word 'sympathy'

feel badly for someone

500

This is a synonym for the word 'descend'

to go down