Which word is most related to "empirical"?

Which word is most related to "empirical"?

A) Factual

B) Conclusive

C) Deceptive

D) Significant

Acerbic

[uh-sur-bik]

adjective

1. sharp and forthright (especially in speech or tone); bitter or cutting

Examples of acerbic in a sentence:

• The critic's acerbic review of the film left the director feeling deflated.

• Her acerbic wit often made people laugh, though it sometimes hurt their feelings.