consistent
mature
logical
proper
considerate
responsible
decisive
tolerant
willing to accept behavior and beliefs that are different from your own, even if you disagree with or disapprove them
reasonable and based on good judgment
real, satisfactory, suitable, or correct
able to make decisions quickly and confidently
caring about and respectful of others, kind and helpful
always behaving or happening in a similar, especially positive way
having good judgment and the ability to act correctly and make decisions on your own
behaving like adults in a way that shows they are well developed emotionally