Careful

a.
  1. Full of care; anxious; solicitous.
  2. Filling with care or solicitude; exposing to concern, anxiety, or trouble; painful.
  3. Taking care; giving good heed; watchful; cautious; provident; not indifferent, heedless, or reckless; -- often followed by of, for, or the infinitive; as, careful of money; careful to do right.