American Heritage Dictionary
(1)
Century Dictionary
(4)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
First of all through his own fault, either because through ignorance of the law (which ignorance does not excuse him), he thinks something not to be sinful which is a sin, as for example if one guilty of fornication were to deem simple fornication not to be a mortal sin; or because he neglects to examine his conscience, which is opposed to what the Apostle says (1 Cor.— Summa Theologica, Part III (Tertia Pars) From the Complete American Edition
Murder is always sinful, and murder is the willful destruction of a human being at any period of its existence, from its earliest germinal embryo to its final, simple, animal existence in aged decrepitude and complete mental imbecility.— Plain Facts for Old and Young
She looked upon the destruction of the hat and the shirts as "a sinful waste," and as to Leo's jokes Called me a baggage, did he?"— A Flat Iron for a Farthing or Some Passages in the Life of an only Son
Trouble did come; the man you had made a sort of idol of, to whom you had given your whole heart, with a love so intense as to be sinful--this man abandons you.— Kate Danton, or, Captain Danton's Daughters A Novel
Athletic exercises and cheerful sports were renounced as sinful, and the green became the resort of conceited politicians, who, with misapplications of Scripture in their mouths and newspapers and libels in their hands, boasted their renunciation of the sensual vices, yet cherished as graces the baneful passions of pride, malice, and stubbornness, which the Scriptures assure us are most odious in the sight of God Dr. Beaumont was not an inactive spectator, while he beheld his parishioners thus exchanging the infirmities of the flesh for spiritual contumacy; but the evil had spread beyond the reach of lenient remedies.— The Loyalists, Vol. 1-3 An Historical Novel

Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about twice a week.