This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Gradually deteriorating; declining: the wasting process of erosion.

adj. Sapping the strength, energy, or substance of the body; emaciating: a wasting disease.

adj. Referring to something that cause a waste, particularly a wasting disease which causes pronounced loss of body mass.

v. Present participle of waste.

adj. Causing waste; also, undergoing waste; diminishing

n. In medicine, atrophy.

n. In stone-cutting, the process or operation of chipping off fragments from a block of stone with a pick or point, for the purpose of reducing the faces to an approximately plane surface. Stone so worked is said to be wasted off. Compare clowring.

Laying waste; devastating; despoiling.

Gradually reducing the bodily plumpness and strength; enfeebling; emaciating: as, a wasting disease.

n. a decrease in size of an organ caused by disease or disuse

n. any general reduction in vitality and strength of body and mind resulting from a debilitating chronic disease

"In _The boy wasting his time does not study_, the words _wasting his time_ form an adjective phrase modifying _boy_."

feebleness    infirmity    frailty    frailness    debility    valetudinarianism   

wasting palsy   

wasting disease   

diminishing    tabescent    emaciation    tabefaction    contabescence    maceration    marasmus    syntexis    colliquation    consumption   

waste   

basting    hasting    lambasting    pasting    tasting