(nautical, of a wind) Favorable to a ship's course.
Not overcast; cloudless; clear; pleasant; propitious; said of the sky, weather, or wind, etc.
Free from obstacles or hindrances; unobstructed; unencumbered; open; direct; said of a road, passage, etc.
(shipbuilding) Without sudden change of direction or curvature; smooth; flowing; said of the figure of a vessel, and of surfaces, water lines, and other lines.