Nouns #1
Verbs
Adjectives #1
Adjectives #2
Nouns #2
100

A large-scale destruction, especially by fire; a vast slaughter; a burnt offering

Holocaust

100
To examine closely

Scrutinize

100

Skillful, expert in the use of hands or minds

Adroit

100

Given to fighting, warlike; combative, aggressive

Belligerent 

100

A wry face, facial distortion

Grimace

200

treachery, deceitfullness

Duplicitity

200

To move backward; to return to an earlier condition

Retrogress
200

Possible, able to be done

Feasible

200

Hasty; not thorough

Cursory

200

A moving force, impulse, stimulus

Impetus

300

danger; name of this game

Jeopardy

300

To praise extravagantly

Extol
300

Peaceable, friendly

Amicable

300

Kindly; charitable

Benevolent 

300

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No more nouns

400

A longing for something past; homesickness

Nostalgia

400

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There are no more verbs

400

Not affected or hurt by; admitting of no passage or entrance

Impervious

400

Lukewarm, unenthusiastic

Tepid

400
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No more

500

The purest essence or form of something; the most typical example

Quintessence

500

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No more verbs

500

Having a deep-seated distaste; opposed, unwilling

Averse

500

Extremely careful; particular about details

Meticulous 

500

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No more nouns