Front

Ridiculous

Back

absurd

Front

a theory used as a basis for research

Back

hypothesis

Front

weaken; damage

Back

impair

Front

examining one's own thoughts

Back

introspective

Front

lack of sophistication; simple

Back

naivete

Front

a person who takes advantage of an opportunity with little regard to moral principle

Back

opportunist

Front

having a constant relation in degree or number

Back

proportional

Front

regression

Back

a return to a less developed state

Front

excitement

Back

sensation

Front

old, nagging, mean woman

Back

shrew