most sensible

astute down-to-earth intelligent judicious logical practical prudent rational sane shrewd sober wise

all there attentive au courant aware canny cognizant commonsensical conscious consequent conversant cool discerning discreet discriminating far-sighted having all one's marbles in right mind informed knowing matter-of-fact sagacious sage sentient sound together well-reasoned well-thought-out witting

excited foolish idiotic ignorant imbecile impractical irrational stupid unintelligent unrealistic unreasonable unsound unwise

indiscreet senseless