There was not a single bibulous adventurer in our expedition.

A. fearful

B. cowardly

C. sober

D. unenergetic

Answer: Option C

Solution(By Examveda Team)

Bibulous : excessively fond of drinking alcohol.
Fearful : feeling or showing fear or anxiety.
Cowardly : lacking courage.
Sober : not affected by alcohol; not drunk.
Unenergetic : lacking energy or vigour.

Antonym of Bibulous is Sober