In a way that is unclear, blurry, or difficult to perceive or understand.
From Latin 'indistinctus' (in- 'not' + distinctus 'separated'), meaning not clearly separated. The -ly makes it an adverb. Related to 'distinct' meaning separate and clear.
Languages create opposite meanings by adding 'in-' or 'un-': 'distinct' means clearly separated, so 'indistinct' means blurred together—this 'in-' prefix (from Latin) is one of the most productive ways English builds new words by negating old ones.
Complete word intelligence in one call. Free tier — 50 lookups/day.