The phrase "bad foundation" is correct and usable in written English.
You can use it when you are referring to a weak basis for an idea, concept, plan, or anything else, like a project. For example, "We scrapped the plan after we realized it was built on a bad foundation."
Being steeped in Cunningham's endless invention isn't a bad foundation for making work of your own.
Others think that any compromise that suits all 25 countries in the European Union would be a bad foundation for the community patent.
(I also stand on one foot when I brush my teeth at night, which has little to do with reducing inactivity but may be one of the more transformative actions I've picked up from researching fitness. My balance and physical confidence have improved, and my husband is consistently amused, which is not a bad foundation for marital health).
But some Republicans, like the House minority leader, Representative John A. Boehner of Ohio, said the president's plan was a bad foundation on which to build because it would kill jobs by imposing new costs on employers, requiring them to provide or help pay for insurance for their workers.
It's a bad foundation for further discussion.
Sometimes the notes on a home inspection report are minor (like a blown-out light bulb), while others are major (such as a bad foundation or a leaky roof).
There is the Cameron who wants to cut national insurance and pay for it from efficency savings (a wise tax cut built on bad foundations) and the Cameron who today appeals to Guardian readers to join him.
Steer clear of homes with bad foundations, unless the price is so far below market value that you will still profit from it.
After a lot of bad press, the foundation reversed itself, and decided to allow Planned Parenthood to apply for future grants.
If your skin is "bad", a good foundation is totally fine as long as you blend well and remove it every night.
The bad news: More foundations and donors need to get on the capacity-building bandwagon if we're going to successfully scale good nonprofits.
