slope, lean, ramp, run, side, dispose, tend, pitch, tilt, slant, more...

decline, slope

steep, gradual, gentle, sharp, sloping, rolling, hilly, mountainous, more...

steep, slight, gentle, long, sharp, gradual, small, rocky, short, smooth, slippery

tend to be,   tend to,   leaning into,   leaning in,   steep slope,   leaned into,   lean to,   lean into,   to tilt head,   to lean,   hill or road