warpwise

/ˈwɔrpˌwaɪz/
adverb
  1. In the direction of the warp threads (the lengthwise threads) in woven fabric.
    • The pattern called for the fabric to be folded warpwise before cutting.
    • When weaving, the weft threads are passed over and under the warpwise threads.
    • The tailor cut the fabric warpwise to ensure the stripes ran vertically.
Antonyms
adjective
  1. Relating to or oriented along the warp direction of a woven fabric.
    • The warpwise grain of the cloth must be aligned with the center back seam.
    • The warpwise stretch of this denim is minimal compared to the weftwise stretch.
    • She studied the warpwise threads under a magnifying glass to check for breaks.