More than is needed
profusion, abundance, plethora, superabundance, overabundance, surplus, glut, superfluity, redundancy, redundance, undue amount, too much, too many, overkill, fulsomeness, exuberance, inundation, overflow, exorbitance, surfeit, waste, wastefulness, luxuriance, lavishness, oversupply, overdose, overload, plenty, embarras de richesses (French), snootful*, bellyful*, enough and then some*, drug on the market*, too much of a good thing*.
Antonyms lack*, dearth, deficiency.