1. superlative form of lumpy; having the most lumps or bumps; most uneven or irregular in texture

Examples

• This is the lumpiest mattress I’ve ever slept on.
• The lumpiest part of the road made the car bounce violently.
• She chose the lumpiest pillow from the pile.
• The lumpiest gravy was served at the worst restaurant.
• His lumpiest sweater had been stored in the attic for years.
• The lumpiest oatmeal was impossible to eat.