bare, naked, bald, barren

形容詞 naked:

1. completely unclothed
   同義詞：bare, au naturel, nude
2. having no protecting or concealing cover- Shakespeare
   同義詞：defenseless
3. (of the eye or ear e.g.) without the aid of an optical or acoustical device or instrument
4. devoid of elaboration or diminution or concealment; bare and pure
   同義詞：raw
5. lacking any cover

1. She was such a prude that she was even embarrassed by the sight of naked children.
   她正經得出了格，甚至見了赤身露體的孩子也難為情。
2. This star is not visible to the naked eye.
   這顆星肉眼看不見。
3. We can't see microscopic creature with naked eyes.
   我們不能用肉眼看到微生物。
4. Germs are invisible to the naked eye.
   細菌用肉眼看不見。
5. The trees were naked during autumn.
   秋天里樹木都是光禿禿的。
6. Bacteria are too small to see with the naked eye.
   細菌太小，肉眼看不見。
7. These little boys swim naked in the river.
   這些小孩光著身子在河里游泳。

na.ked

adj.（形容詞）
Having no clothing on the body; nude.
裸體的：沒有衣服掩蓋身體的；裸體的
Having no covering, especially the usual one:
無覆蓋的；無殼的：無罩的，尤指常用的東西：
例句：
a naked sword.
出鞘的劍

Devoid of vegetation, trees, or foliage:
無樹葉的；光禿的：缺少植物、樹木或葉子的：
例句：
the naked ground; naked tree limbs.
光禿禿的地板；光禿禿的樹枝

Being without addition, concealment, disguise, or embellishment:
無掩飾的：沒有附加、隱藏、欺騙或偽裝的：
例句：
the naked facts; naked ambition.
明明白白的事實；明顯的野心

Devoid of a specified quality, characteristic, or element:
無特質的：缺乏特別的特質、特點或因素的：
例句：
a look that was naked of all pretense.
無任何矯飾的眼神

Exposed to harm; vulnerable:
暴露的，脆弱的：有意傷害的暴露的；脆弱的：
例句：
.naked to mine enemies.(Shakespeare)
.在我的敵人面前暴露弱點.(莎士比亞)

Botany
【植物學】
Not encased in ovaries:
沒有包在子房里的：
例句：
naked seeds.
裸子

Unprotected by scales:
沒有托包保護的：
例句：
naked buds.
無托包的芽

Lacking a perianth:
缺少花被的：
例句：
naked flowers.
無花被花

Without leaves or pubescence:
沒有葉子或絨毛的：
例句：
naked stalks.
無葉莖

Zoology Lacking outer covering such as scales, fur, feathers, or a shell.
【動物學】 外部無遮蓋的：缺乏外部覆蓋物，如鱗、皮、毛或殼

來源：
Middle English
中古英語
from Old English nacod * see nog w-
源自 古英語 nacod *參見 nog w-

【引伸】
na.kedly
adv.（副詞）
na.kedness
n.（名詞）