Mawson, C.O.S., ed. (1870–1938). Roget’s International Thesaurus. 1922.

Class VI. Words Relating to the Sentient and Moral Powers
Section IV. Moral Affections
3. Moral Conditions

946. Innocence.

   NOUN:INNOCENCE; guiltlessness &c. adj.; incorruption, impeccability, inerrability, inerrableness.
  clean hands, clear conscience, mens sibi conscia recti [Vergil].
  INNOCENT, new-born babe; lamb, dove.
   VERB:BE INNOCENT &c. adj.; nil conscire sibi nullâ pallescere culpâ [Horace].
  ACQUIT [See Acquittal]; exculpate (vindicate) [See Vindication].
   ADJECTIVE:INNOCENT, not guilty; unguilty; guiltless, faultless, sinless, stainless, bloodless, spotless; clear, immaculate; rectus in curiâ [L.]; unspotted, unblemished, unerring; undefiled [See Probity]; unhardened, Saturnian; Arcadian (artless) [See Artlessness]; paradisaic or paradisaical, paradisiac or paradisiacal.
  inculpable, unculpable [rare], unblamed, unblamable, blameless, unfallen, inerrable, above suspicion, irreproachable, irreprovable [rare], irreprehensible; unexceptionable, unobjectionable, unimpeachable; salvable; venial [See Vindication].
  virtuous [See Virtue]; unreproved, unimpeached, unreproached.
  HARMLESS, inoffensive, innoxious [obs.], innocuous; dovelike, lamblike; pure, harmless as doves; innocent as -a lamb, – the babe unborn; “more sinned against than sinning” [Lear].
   ADVERB:INNOCENTLY &c. adj.; with clean hands; with a -clear, – safe- conscience.
  1. Murus aëneus conscientia sana.—Horace
  2. He’s armed without that’s innocent within.—Horace, trans. by Pope
  3. Plain and holy innocence.—Tempest