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obvious idea

/əbˈvjuːs ˈaɪdiə/ · ob.vi.ous. i.de.a
noun
  1. A concept or notion that is clearly and easily understood, often requiring little explanation. The solution to the math problem was an obvious idea once the equation was simplified.
  2. A suggestion or proposal that is so straightforward it seems unnecessary to state. The obvious idea to increase sales was to offer discounts during the holiday season.
phrase
  1. Used to express that a concept or notion is self-evident or requires no explanation. It's an obvious idea that the company needs to invest in new technology to stay competitive.
Did you know? The phrase 'obvious idea' is often used in everyday conversation, but its origins can be traced back to the 17th-century English language, where 'obvious' was used to describe something that is clearly visible or apparent.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Aug 11, 2026