Competent serious.,
wise
Foolish begins with F and it is the opposite of wise.
Wise
foolish
Careless, foolish, idiotic, stupid, ignorant, senseless, irrational, thoughtless, uneducated, or reckless. Those words are the opposite of wise.
foolish
unwise foolish.
The opposite of "inteligente" in Spanish is "tonto" or "boboca", which means unintelligent or foolish.
The opposite of the word intelligent is unintelligent or stupid.
ANSWER: stupid ,foolish, dum, naive, not smart
Wise. -Dr.RSJameson 01March'08
sensible