The word "Incline" means leaning, bending, or sloping in the direction of something. It also includes the idea of having a preference or tendency for something.
Refuse - this means saying no or saying no to something.
Ascend - this means moving in the direction of up.
Lean - this means bending over in the direction of one side. It is very similar in meaning to "Incline".
Natural - this means something normal and natural.
Incline synonyms: slant, lean, slope; trend, verge, tend; be disposed, have a desire or propensity; dispose, predispose, turn, bias; bend, bow; bear, dip, induce, prompt.