Superlative form of ghosty; most ghost-like, pale, or eerie in appearance.
From 'ghost' + '-y' + '-est' (superlative suffix). Forms the highest degree of the quality, as in 'scary/scariest.'
Superlatives like 'ghostiest' let us make extreme claims about the world, which is why they're so common in marketing and storytelling—'the ghostiest mansion' is more dramatic than 'very ghosty.'
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