Conscientious \Con`sci*en"tious\, a. [Cf. F. consciencieux, LL. conscientiosus.]

1. Influenced by conscience; governed by a strict regard to the dictates of conscience, or by the known or supposed rules of right and wrong; -- said of a person.

The advice of wise and conscientious men. --Prescott.

Source: Webster's Revised Unabridged Dictionary (1913)