Show:
Nouns
Verbs
Adjectives
Affixes
Wildcard
100
An optical illusion
Mirage
100
To eject; kick out
Oust
100
Smelly; Offensive
Noisome
100
Mal
Bad
100
The only word that is spelled the same when written backwards and upside down. 
Swims
200
Love of mankind
Philanthropy 
200
become weak; wilt
Languish
200
False
Spurious
200
Anti
Against
200
What is black and white and read all over?
A newspaper!
300
Fortress; Place where weapons are kept
Citadel
300
Stockpile; stash
Hoard
300
The front of a building
Anterior
300
Semi
Half
300
Name something (non-human) that gets smaller the older it gets. 
Candle; pencil, ???
400
A tranquil, secluded place
Cloister
400
lure; attract
Entice
400
easy to fool; believes anything
Gullible
400
Ante
Before
400
What starts with "t" ends with "t" and is filled with "t"?
A teapot
500
A violent overthrow
Coup
500
To prepare
Gird
500
Sneaky
Surreptitious
500
Intra
Within
500
How many months have 28 days?
12! (They all do!)