Sĭn'ful, a.
a. [A-S. synful.] 1. Tainted with, or full of, sin; wicked; iniquitous; criminal; unholy; as, sinful men.
Ah, sinful nation, a people laden with iniquity! Isa. i. 4.
Sense 2. Containing sin, or consisting in sin; contrary to the laws of God; as, sinful actions; sinful thoughts; sinful words.