Heavy-footed and Laborious

Heavy-footed adjective - (of movement) lacking ease or lightness.

Laborious and heavy-footed are semantically related. In some cases you can use "Laborious" instead an adjective phrase "Heavy-footed".

Laborious adjective - Involved in often constant activity.

Heavy-footed and laborious are semantically related. Sometimes you can use "Heavy-footed" instead an adjective "Laborious".