a.

1. 禿頭的，禿頂的
   When he grew bald he bought a toupee.

   他頭髮日漸稀少，於是買了假髮。

2. 無毛的，禿的
   He's as bald as a coot.

   他濯濯童山。

3. 無草木的；無樹葉的
4. （織物等）磨得光光的
   Your tire is bald and unsafe.

   你的輪胎磨平了，不安全。

5. 露骨的，赤裸裸的
   This is a bald falsehood.

   這是赤裸裸的謊言。

6. 無裝飾的，單調的
   He gave a bald statement of the facts.

   他對事實作了枯燥無味的陳述。

7. （馬等）頭部有白斑的

adj.

1. having a scalp wholly or partly lacking hair.
   ▸(of an animal) not covered by the usual fur, hair, or feathers.
2. (of a tyre) having the tread worn away.
3. (of language) plain; blunt.