A person who believes that very good things can be achieved is...
Idealistic
Dumb
Unsophisticated
Naïve
When you are too willing to believe that someone is telling the truth and that people's intentions in general are good, you are...
Idealistic
An easy prey
Impressionable
Naïve
A person who is only interested in him/herself and his/her own activities is...
Self-centered
Egoistic
Selfish
Egocentric
A person willing to consider opinions and ideas different to his/her own is...
Stupid
Naïve
Open-minded
Candid
A person relating to others in a straightforward way that might sound rude is...
Plain
Abrupt
Bold
Straightforward
People acting on good judgment and practical ideas or understanding are...
Sagacious
Sensible
Responsible
Sensitive
A person with honest and sincere emotions is...
False
Genuine
Imaginative
Straightforward
Someone not showing sympathy for other people's feelings is...
Nasty
Abrupt
Unsensitive
Insensitive