Without making careful distinctions; treating all things, people, or cases the same way without choosing or judging which ones are different or better.
From 'indiscriminate' (from Latin 'in-' meaning not, plus 'discriminate' from Latin 'discriminatus,' meaning separated or distinguished). The adverbial '-ly' suffix was added to describe how the action occurs.
The root 'discriminate' comes from Latin meaning 'to separate'—so 'indiscriminately' means NOT separating or NOT making distinctions. We use this word negatively most of the time (bombs falling indiscriminately), but the original Latin was totally neutral about separation itself.
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