Antonym of flattened

Antonyms of verb flatten

1 of 3 senses of flatten

Sense 3:

flatten, drop
Antonym of sharpen (Sense 6)
=>sharpen

Antonyms of adj flattened

1 sense of flattened

Sense 1:

planate, flattened

INDIRECT (VIA linear, planar) -> cubic, three-dimensional
INDIRECT (VIA planar, cubic) -> linear, one-dimensional