make a noun
make a verb
make an adjective
make an adverb
challenge
100

create

creation

100

interaction

interact

100

nature

natural

100

extreme

extremely

100

make the negative adjective

happiness

unhappy

200

discover

discovery

200

creative

create

200

danger

dangerous

200

absolute

absolutely

200

make the negative adjective

comfort

uncomfortable

300

able

ability

300

memory

memorize

300

care

careful/careless

300

basic

basically
300

make the negative noun

understand

misunderstanding

400

please

pleasure

400

identity

identify

400

energy

energetic

400

effect

effectively

400

make the negative adverb

logic

illogically

500

succeed

success

500

courage

encourage

500

science

scientific

500

fortune

fortunately

500

make the negative adjective

need

unnecessary