Potential

My best friend has a lot of potencial in school

Efficient & Flexible Reading p. 109



Synonyms - ability
Antonyms - limitation
Definition - adjective
capable of being or becoming: a potential danger to safety.

http://dictionary.reference.com/browse/potential

The potential of stem cells to treat devastating diseases has been hailed as one of the greatest medical breakthroughs of all time.



Devastating

Hurrican Katrina was one of the most devastating natural disasters in the US history

Efficient & Flexible Reading p. 109
Synonyms - Destructive
Antonyms - Peaceful
Definition - adjective
satirical, ironic, or caustic in an effective way: a devastating portrayal of society.

http://dictionary.reference.com/browse/devastating

The potential of stem cells to treat devastating diseases has been hailed as one of the greatest medical breakthroughs of all time.

Incredulity

The incredulity of people didn't allow them to be prepared of the disaster

Efficient & Flexible Reading P. 105
Synonymous - disbelief
Antonomous - approval
Definition - noun

The state or quality of being incredulous; a withholding or refusal of belief; skepticism; unbelief; disbelief.
http://dictionary.reference.com/browse/incredulity

Their incredulity persists even now that i am a senior resident, working on the world's busiest hospital emergency rooms.