Wiktionary
vb. (present participle of water down English)
Usage examples of "watering down".
Her previous customer had complained the coffee was too hot, and when Marla cheerfully put an ice cube in it to make it more palatable, the customer bitched that she was watering down the coffee.
At the first of these the Vicar is a man who has been so long engaged in watering down the faith to make it easier for supposedly incredulous and hard-headed congregation that it is now he who shocks his parishioners with his unbelief, not vice versa.
This means, Russell, that you're going to have to come up with a good many innovative ideas to stretch out the series, and without the watering down of the entertainment values.
Amedahast was fully human, the result of many years of mortal blood watering down her elven ancestry.
Stupid, soft-hearted bastard, watering down the lifeblood of our culture with his foolish laws.