Front

Does not work properly

Back

Malfunctioning

Front

Not a necessity

Back

Expendable

Front

Move in a wave-like fashion

Back

Undulate

Front

Completely destroy

Back

Annihilate

Front

Can withstand hardships

Back

Resilient

Front

Extremely small

Back

Infinitesimally

Front

Below the threshold of consciousness

Back

Subliminal

Front

Relationship between two events

Back

Correlate

Front

A statement or event that seems impossible but is true.

Back

Paradox

Front

Become foul or rotten from lack of movement

Back

Stagnating