com/dictionary/american/keen_1#keen_1__6
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Mr. TomMy prediction about her return was keen, wasn't it?No, predictions are not described as keen. Foresight, sight, smell, etc. are things that can be described as "keen."
Mr. TomHis foresight about the outcome of a cricket match is always keenest.That does not fly because the superlative is not being compared to anythi
Mr. Tomkeenest ... Although I understand the overall meaning, I am not really sure in what sense the underlined word has been used.sharpest, most perceptive, most insightful
Mr. TomMy prediction about her return was keen, wasn't it?His foresight about the outcome of a cricket match is always keenest.Was't her sense that something was amiss in the room keen?Dictionary definitions are typically "one-way".