too heavy
- weightyHeavy or significant
- burdenOppressive weight or duty
- cumbersomeAwkwardly heavy or bulky
- ladenHeavily weighted down
- overloadedBurdened past capacity
crushing · leaden · ponderous · dense · dragging · sinking · exhausting · oppressive · bulky · unwieldy · sluggish · anchor · burdened · strain · lug · heave · tonnage · sag
weight/mass
too heavyweightless
Having no heft
featherlight · light as a feather · lightweight · airy · insubstantial
burden/intensity
too heavylightweight
Lacking mass or importance
light · easy · manageable · unburdening · effortless