1.Definition: cautiously attentive
"Careful of her feelings"
2.Definition: 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"
3.Definition: full of cares or anxiety
"Thou art careful and troubled about many things"
4.Definition: mindful of the future in spending money
"Careful with money"