/ ˌɪndɪˈskriːt; NAmE / adjective
not careful about what you say or do, especially when this embarrasses or offends sb
OPP discreet
► in·dis·creet·ly adverb
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WORD ORIGIN
late Middle English (originally as indiscrete in the sense lacking judgement ): from late Latin indiscretus not separate or distinguishable (in medieval Latin careless, indiscreet), from in- not + discretus separate (past participle of discernere discern, the sense arising from late Latin discretio separation, from discernere , from dis- apart + cernere to separate).