Answer: B

Explanation:

Incipient and nascent mean initial, early

Answer: C

Explanation:

Affectation and pretension mean showing off, e.g., behavior, speech, and writing, etc., which is intended to impress

Answer: D

Explanation:

Alacrity means eagerness, readiness, so its synonym is promptness

Answer: A

Explanation:

Desolate means deserted, isolated or dejected.

Answer: D

Explanation:

Uncouth means rude, uncivilized, bad-mannered, impolite, etc.