definition of
sinful

[1] #1 sinful s. [iniquitous, ungodly] characterized by iniquity; wicked because it is believed to be a sin; "iniquitous deeds"; "he said it was sinful to wear lipstick"; "ungodly acts". wn

[2] #2 sinful s. [unholy, wicked] having committed unrighteous acts; "a sinful person". wn