The state, quality, or fact of being unlikely or improbable; the opposite of likelihood.
From 'dis-' (prefix negating) + 'likelihood' (from Middle English 'likelyhod', from 'likely' + '-hood' suffix meaning condition or state). This is a rare formation.
While we'd normally say 'unlikelihood', 'dislikelihood' is technically more logical—it follows the same pattern as 'disapprove' and 'dislike', yet it almost never appears in modern English, showing how language conventions sometimes override logic.
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