Suggested or implied something unpleasant in an indirect, subtle way without stating it directly.
From Latin 'insinuare' (to introduce gradually), combining 'in-' (into) and 'sinuare' (to curve/wind). The word originally meant to creep in sneakily, which matches how it suggests ideas indirectly.
The Latin root 'sinuous' (meaning curving and winding) shares ancestry with 'insinuate'—both capture the idea of something that doesn't go straight but curves around or winds its way in.
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