くず・屑kuzu[1]atamadaka (head-high)

1. nounwaste; scrap; garbage; dregs
   ラップは屑くずだ。↗

   Rap is crap.
2. nounscum; piece of trash; loser

• SynonymゴミNeutralReads 「ゴミ」: everyday household garbage and waste, the most common word in daily use; 「屑」 is about scraps left over from processing and can also mean scum.
• Synonym廃物はいぶつWrittenA written/formal word for useless waste or discarded articles; can also label a person as useless, as in 「廃物扱い」.
• Synonym廃棄物はいきぶつWrittenThings discarded as unneeded; common in sorting and disposal explanations like 「産業廃棄物」; fairly formal.
• SynonymスクラップNeutralLoanword for scrap metal and similar waste material; also means clippings, as in 「スクラップブック」.
• SynonymガラクタCasualColloquial word for worthless junk and clutter, as in 「我楽多を片付ける」; common in everyday speech.
• Synonym塵芥じんかいWrittenA written word for garbage and filth, seen mostly in administrative documents; rare in modern usage.
• SynonymごもくNeutralIdentical to the first entry: 「芥」 is just a different spelling read 「ゴミ」; nowadays usually written 「ごみ」.
• Related破片はへんNeutralFragments of glass, ceramics and the like; focuses on the small pieces left after something breaks.
• Related切れ端きれはしNeutralOffcuts of cloth, paper or wood; focuses on the small leftover pieces.
• Related瓦礫がれきNeutralRubble from collapsed or demolished buildings: broken tiles, concrete and more, as in 「瓦礫の山」.
• Related屑物くずものNeutralWaste material or shoddy goods, with an old-fashioned flavor, as in the scrap dealer's 「屑物屋」.
• Relatedボロ布ぼろきれNeutralRags or old cloth strips only; often used for wiping things down.
• RelatedぼろNeutralRagged clothes and worn-out cloth; also means a fault or flaw, as in 「ぼろが出る」.
• Related出来損ないできそこないNeutralA botched product or a good-for-nothing person; used to insult or to speak humbly of one's own family; 「屑」 leans toward dregs and scum.
• RelatedトラッシュNeutralLoanword for trash, rarely used in daily life; mostly seen as the English name of the computer 「ゴミ箱」.
• Related灰塵かいじんWrittenA written word for ashes and dust, as in 「灰塵に帰す」; carries a literary flavor.
• Related砕片さいへんWrittenA written word for broken fragments; technical and fairly rare.
• Related切り端きりはしNeutralCut-off scraps and offcuts; focuses on the bits produced while cutting.
• Related切れっ端きれっぱしCasualColloquial word for cut-off scraps and odds and ends; more casual than 「切れ端」.
• Related落伍者らくごしゃWrittenA written word for someone left behind by a group or a loser in social competition; stresses falling behind.
• RelatedかすNeutralDregs or sake lees; also insults a person as scum, as in 「人間の滓」, making it close to 「屑」.
• Related端くれはしくれNeutralA small scrap or piece; also used humbly of oneself as a minor member of a trade, as in 「医者の端くれ」.
• Antonym宝物たからものNeutralA treasured possession; the opposite of the useless 「屑」.
• Antonym貴重品きちょうひんNeutralValuables, as in 「貴重品を預ける」; the opposite of waste.

Use 「屑」 for scraps, waste material, or calling someone scum, as in 「紙屑」 and 「人間の屑」. For household garbage say 「ゴミ」, for broken fragments 「破片」, for cut-off scraps 「切れ端」, and for worthless junk 「我楽多」; for treasure use 「宝物」.

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

1. （くず）こわれて、つかわなくなったもの。
2. （くず） なんの役やくにもたたないもの。
3. （くず） よいところをとったあとにのこったもの。