Source : WordNet®

downwind
     adj : towards the side away from the wind [syn: {lee(a)}]
     adv 1: in the direction the wind is blowing; "they flew downwind"
            [syn: {with the wind}] [ant: {upwind}]
     2: away from the wind; "they were sailing windward" [syn: {windward}]
        [ant: {leeward}, {leeward}]