裏側|うらがわuragawa[0]heiban (flat)

1. nounthe reverse (side); back (side); other side; hidden side; behind the scenes
   えりはまず裏側うらがわにアイロンをかけ次つぎに表側おもてがわをかけなさい。↗

   Iron the inside of collars first, and then the outside.

• Synonym裏手うらてNeutralFor the area behind a building, as in 「家の裏手」; purely positional, while 「裏側」 can also mean hidden circumstances.
• Synonym背面はいめんWrittenWritten word for the back or reverse face, as in 「背面跳び」; leans toward the rear face of an object.
• SynonymバックNeutralLoanword for the rear or for backing and support; leans toward the background sense.
• SynonymリアNeutralLoanword for the rear of a vehicle, as in 「リアウィンドウ」.
• Synonym後あとNeutralBehind or after, as in 「後からついていく」; leans toward order in time.
• Synonym裏面うらめんWrittenWritten word for the reverse face or hidden levels, as in 「裏面に記入」.
• Synonym裏うらNeutralCovers the back or hidden side and hidden motives, as in 「裏がある」; shorter than 「裏側」.
• Related裏うらNeutralCovers the back or hidden side and hidden motives, as in 「裏がある」; shorter than 「裏側」.
• Related背後はいごWrittenWritten word for behind or behind the scenes, as in 「事件の背後」; leans toward hidden forces at work.
• Related後部こうぶWrittenWritten word for the rear part of vehicles, ships or buildings, as in 「後部座席」; location only, with none of 「裏側」's hidden-circumstances sense.
• Related陰かげWrittenWritten word for dark or hidden spots and doing things behind someone's back, as in 「陰で支える」; leans toward inconspicuous places.
• Related後ろ側うしろがわNeutralThe rear side, as in 「後ろ側の席」; only front-back direction, with no hidden-circumstances sense.
• Related背部はいぶWrittenWritten word for a person's or animal's back, also the rear of objects or buildings, as in 「建物の背部」; no hidden-circumstances sense.
• Related後面こうめんWrittenWritten word for the rear side; few examples in use — in speech say 「後ろ」.
• Related後背こうはいWrittenWritten word for the rear or behind; rarely used.
• Antonym表面ひょうめんNeutralThe surface or outward appearance; opposite of 「裏側」 in its back and hidden-circumstances senses.
• Antonym正面しょうめんNeutralThe front or straight-ahead direction; the opposite of 「裏側」's back side.
• Antonym表側おもてがわNeutralThe front or surface side; the direct opposite of 「裏側」.
• Antonymオモテ面おもてめんNeutralThe front of paper, coins or medals; the opposite of 「裏側」.

Use 「裏側」 for the back of an object or for hidden circumstances, as in 「月の裏側」 and 「業界の裏側」. For the area behind a building say 「裏手」; for forces hidden behind something, 「背後」. Many alternatives are written-style or narrower in scope, and the opposites are 「表側」 and 「正面」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 裏うらに面めんする部分ぶぶん。
2. 事態じたいや事件じけんにおいて、多おおくの人ひとに知しられていない事情じじょう。