Unpeeled fruit or vegetables still have their skin on — nobody has taken it off. You use it about things people normally would peel: potatoes, apples, carrots, garlic, prawns, hard-boiled eggs. That is the quiet part of the meaning worth noticing: 'unpeeled' only makes sense where peeling was an option. Nobody says 'unpeeled grapes' in normal life, because peeling a grape is not a thing we usually do. You meet the word most in recipes and cooking talk — 'boil the potatoes unpeeled', 'serve the prawns unpeeled' — and it often appears after the verb like that, telling you the state something is in while you cook or serve it, as well as before a noun ('unpeeled garlic'). It is neutral, not negative: these days leaving skin on is often the healthy or the tastier choice, and a recipe saying 'unpeeled' usually means 'leave the skin, it's better that way', not 'we were lazy'. Notice too that English has two ways to say this and they feel different: 'unpeeled' sounds a little more written and recipe-like, while in everyday speech people are just as likely to say 'with the skin on' — 'just boil them with the skins on'.

沒削皮的、帶皮的（水果、蔬菜）；口語就說「連皮」「帶皮」