The adj careful has 5 senses (first 3 from tagged texts)
1. (19) careful -- (exercising caution or showing care or attention; "they were careful when crossing the busy street"; "be careful to keep her shoes clean"; "did very careful research"; "careful art restorers"; "careful of the rights of others"; "careful about one's behavior")
2. (2) careful, heedful -- (cautiously attentive; "careful of her feelings"; "heedful of his father's advice")
3. (1) careful, deliberate, measured -- (with care and dignity; "walking at the same measured pace"; "with all deliberate speed")
4. careful -- (full of cares or anxiety; "Thou art careful and troubled about many things"-Luke 10.41)
5. careful, thrifty -- (mindful of the future in spending money; "careful with money")