-ous/-eous/-ious
-ous/-eous/-ious
-ous/-eous/-ious
onym
100

Adventurous

having the qualities of adventure

100

Courageous

Having qualities of great courage

100

Hilarious

Having qualities of laughter

100

Acronym

A word formed using the first letter of each word

ex: SCUBA, LOL, ASAP

200

Delirious

having qualities of great confusion or delirium

200

Extraneous

having qualities of being extra

200

Ferocious

Having qualities of fierceness 

200

Anonymous

Possessing qualities of being without a name

Realistic: done by an unnamed person

300

Nauseous

Having qualities of nausea

300

Hideous

Having qualities of terror

Realistic: ugly, disgusting

300

Obnoxious

offensive

300
Antonym

A word meaning the opposite of another word

400

Outrageous

Having qualities of anger or outrage

400

Simultaneous

Having qualities of happening at the same time

400

Repetitious

having qualities of repeating

400

Synonym

A word meaning the same thing as another word