leaving self wide open

careless foolhardy foolish ill-advised ill-considered irresponsible reckless thoughtless unwise

brash heedless ill-judged impolitic improvident incautious inconsiderate indiscreet inexpedient injudicious off the deep end overhasty playing with fire rash temerarious unadvisable unthinking

attentive careful cautious kind mindful prudent responsible sensible thoughtful wise

discreet