Defn: Not to be returned.

IRREVEALABLE
Ir`re*veal"a*ble, a.

Defn: Incapable of being revealed.
— Ir`re*veal"a*bly, adv.

IRREVERENCE
Ir*rev"er*ence, n. Etym: [L. irreverentia: cf. F. irrévérence.]

Defn: The state or quality of being irreverent; want of proper reverence; disregard of the authority and character of a superior.

IRREVEREND
Ir*rev"er*end, a.

Defn: Irreverent. [Obs.]
Immodest speech, or irreverend gesture. Strype.

IRREVERENT
Ir*rev"er*ent, a. Etym: [L. irreverens, -entis: cf. F. irrévérent.
See In- not, and Reverent.]

Defn: Not reverent; showing a want of reverence; expressive of a want of veneration; as, an irreverent babbler; an irreverent jest.

IRREVERENTLY
Ir*rev"er*ent*ly, adv.