Comparative form of 'chunky': more characterized by chunks or thick pieces, or having a bulkier, thicker appearance.
From 'chunky' (made of or containing chunks) plus the comparative suffix '-er'. 'Chunky' itself comes from 'chunk' plus '-y' (full of).
The rise of 'chunky' in the 1950s-60s reflected changing food preferences and design aesthetics—'chunky' peanut butter and chunky knit sweaters became desirable, turning what might have been a defect into a style choice.
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