The phrase "a boring subject" is correct and usable in written English.
It can be used to describe a topic that is uninteresting or dull to the speaker or audience.
Example: "Many students find mathematics to be a boring subject, especially when the concepts are not explained clearly."
Alternatives: "an uninteresting topic" or "a tedious subject".
You have a choice either to believe you are a mediocre teacher teaching a boring subject to boring kids.
How big your car is is a boring subject right now.
YOU could call it a boring subject, but it does have some people pretty excited.
Engineering used to be seen as a boring subject, but the latest technologies offer those coming into the industry a broader avenue of development and research to the traditional computer programming routes as a career path.
For example, perceptions of computer science among adolescent females are often negative with some seeing it as a boring subject devoid of interesting applications, computing careers as menial, that it is a boy's domain, and that it is an individual or anti-social domain (e.g., Graham and Latulipe 2003, Varma and Lafever 2007, Wilson 2003).
@7 Won't be such a boring subject next season when you only get to see 1/2 of the season live FTA on the BBC or are you one of those that thinks it is OK as you have Sky anyway.
Simon Hill, vice president, EMEA, at energy consultants Opower, argued that consumers are difficult to engage because "fundamentally, energy efficiency is a dull, boring subject … people think about energy use for nine minutes a year.
Stationery is a promisingly "boring" subject.
But for too many high school students, math has become a reviled, boring subject.
Twitter user @going_concern is a great example of how you can make light of an otherwise boring subject matter while still keeping it relevant to what you do.
In a 2001 interview with the journal Statistical Science, he said that while at UCLA, he concluded that math education for children was "all wrong because they wound up thinking of mathematics as an awful, boring subject that had nothing to do with the everyday world around them". So, he volunteered to teach math to two 5th grade classes, one of them for emotionally disturbed youngsters.
