underburden

To give too light a burden; to assign less than a fair share.

In reality, the levels of work varied: some internationals seemed overburdened with tasks and responsibility, some seemed underburdened, and some faced apparently just the right amount of work.

Well aware of the orgy of scapegoating that the world had embarked upon, I didn't want to blame anyone, let alone run the risk of overburdening some and underburdening others with responsibility for the crunch.

To assign less work than someone or something is capable of.

If a man is overburdened, which is the true cause of complaint, or underburdened, which is the modern cause of complaint, he may seek redress; but he alone who is overburdened or underburdened is authorised to seek redress.

After five days of unsatisfactory work, we came to the conclusion that the furnace was underburdened.

The rock and subsoil that lies below a mineral deposit such as a coal seam.

Much of the heat introduced with the steam is lost to the overburden and to the underburden by thermal conduction in the manner discussed earlier.

Settari (2002) and Osorio et al. (1999) also suggest that the analysis domain should include overburdens, sideburdens and underburdens for better accommodation of the coupling effects of stress changes and flow.