Impetuous

Acting or done quickly without thought or care

Disdain

The feeling that someone/something is unworthy of one's consideration or respect

Fastidious

Very attentive to and concerned about accuracy and detail

Haughty

Blatantly proud; showing an attitude of superiority for people or things perceived to be inferior

Dis[arage

Regard or represent as being of little worth

Patronize

To talk to someone in a way that shows that you believe you are more intelligent or better than others

Abhor

To regard with extreme dislike; to feel hatred or loathing for

Pretentious

Attempting to impress by affecting greater importance, talent, culture, etc. than is actually posessed

Scoff

Speak to someone or about something in a scornfully derisive or mocking way

Complacent

Marked by self-satisfaction especially when accompanied by unawareness or actually dangers or deficiencies. Self-satisfaction