Source : Webster's Revised Unabridged Dictionary (1913)

Indiscretion \In`dis*cre"tion\, n. [Pref. in- not + discretion:
   cf. F. indiscr['e]tion.]
   1. The quality or state of being indiscreet; want of
      discretion; imprudence.

   2. An indiscreet act; indiscreet behavior.

            Past indiscretion is a venial crime.  --Cowper.

Source : WordNet®

indiscretion
     n 1: the trait of being injudicious [syn: {injudiciousness}]
     2: a petty misdeed [syn: {peccadillo}]