source: The Hidden Group | Kitsu

BARE, NAKED, NUDE, BALD, BARREN mean deprived of naturally or conventionally appropriate covering.

BARE implies the removal of what is additional, superfluous, ornamental, or dispensable.

e.g. an apartment with bare walls

NAKED suggests absence of protective or ornamental covering but may imply a state of nature, of destitution, or of defenselessness.

e.g. poor half-naked children

NUDE applies especially to the unclothed human figure.

e.g. a nude model posing for art students

BALD implies actual or seeming absence of natural covering and may suggest a conspicuous bareness.

e.g. a bald mountain peak

BARREN often suggests aridity or impoverishment or sterility.

e.g. barren plains

1. having a scalp wholly or partly lacking hair:

〈人･頭が〉髪のない［うすい］, はげた (!やや直接的; 遠回しに表現する際にはthin, baldingなどを用いる)

e.g. he was starting to go bald

e.g. he had a shiny bald head.

(of an animal) not covered by the usual fur, hair, or feathers:

〈動物が〉(あるべき)毛［羽毛］のない

e.g. hedgehogs are born bald.

(of a plant or an area of land) not covered by the usual leaves, bark, or vegetation:

〈植物が〉(あるべき)葉のない;〈山･土地が〉草木の生えていない

e.g. the bald trunks with their empty branches.

(of a tire) having the tread worn away:

｟話｠ 〈タイヤが〉すり減った, つるつるの

e.g. my car had two bald tires.

2. attributive not having any extra detail or explanation; plain or blunt:

比較なし 〖名詞の前で〗露骨な〈言葉(遣い)など〉; ありのままの〈現実･事実など〉

e.g. the bald statement in the preceding paragraph requires amplification.

baldish adjective

Middle English: probably from a base meaning ‘white patch’, whence the archaic sense ‘marked or streaked with white’. Compare with Welsh ceffyl bal, denoting a horse with a white mark on its face.