Heavier-than-air and Ponderous

Heavier-than-air adjective - Relating to an aircraft heavier than the air it displaces.

Ponderous and heavier-than-air are semantically related. In some cases you can use "Ponderous" instead an adjective phrase "Heavier-than-air".

Ponderous adjective - Causing weariness, restlessness, or lack of interest.

Heavier-than-air and ponderous are semantically related. You can use "Heavier-than-air" instead an adjective "Ponderous".

Nearby Words: ponder, pondering, pondered, ponderously, ponderable