In a way that is completely clear and cannot be misunderstood or doubted; absolutely and without any ambiguity.
From 'unequivocal' (un- + equivocal), which comes from Latin 'aequivocus' meaning having equal voice or double meaning. Adding '-ly' creates the adverb form, making a word that literally means without multiple meanings.
The word 'equivocal' comes from 'equus' (equal) and 'vox' (voice)—so 'equivocal' means having two equal voices or meanings, and 'unequivocal' strips away that confusion to give you just one clear voice!
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