water down

Verb

water down (third-person singular simple present waters down, present participle watering down, simple past and past participle watered down)

1. To dilute with water; to add water to.
   • You need to water down the lemonade a bit more to make it less sweet, dear.
2. (idiomatic) To make weaker, less effective.
   • "Scaling back its ambition further, at this stage, will just mean the economic and social benefit of HS2 for communities across the UK is further watered down. Our national infrastructure should not become a political football."2023 February 8, Paul Stephen, “Network News: Hunt dismisses rumours that HS2 will not go to Euston”, in RAIL, number 976, page 25
   • For example, Tory ministers are looking to water down key climate policies such as the ban on petrol and diesel cars by 2030, phasing out gas boilers by 2035, and low traffic neighbourhoods.2023 August 26, Phoebe Weston, “Weed-choked pavements anger residents as ‘rewilding’ divides UK towns and cities”, in The Guardian, →ISSN
3. (idiomatic) To simplify or oversimplify; to make easier; to make less difficult.
   • Near-synonym: dumb down
   • If you plan to teach this material to children, you may need to water it down.

   Synonyms:

   dumb down

4. (idiomatic) To make less restrictive; to make more lenient.