The superlative form of 'acute,' meaning the most sharp, most severe, or most intense.
From Latin 'acutus' with the English superlative suffix '-est' added, following standard patterns for making superlative adjectives.
The superlative form 'acutest' appears in Shakespeare and medical texts—describing the 'acutest pain' or 'acutest angle' shows how the language preserved Latin precision.
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