Depthless and Slapdash

Depthless adjective - Lacking significant physical depth.

Slapdash and depthless are semantically related. in detail topic. In some cases you can use "Slapdash" instead an adjective "Depthless", when it comes to topics like superficial, casual.

Slapdash adjective - Lacking a definite plan, purpose, or pattern.

Depthless and slapdash are semantically related. Sometimes you can use "Depthless" instead an adjective "Slapdash".