uneven ground; broken terrain
Rare term for rough, uneven, or broken ground; often used in off-road or geological contexts.
See also: オフロード
Vehicles that travel over uneven ground need special suspension.
Compound of 不 (not) + 斉 (even, uniform) + 地 (ground). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning 'uneven ground'.