What context can I use each word in?
Learn when and how to use these words with these examples!
underlying
Example
The underlying issue in this problem is a lack of communication. [underlying: adjective]
Example
The data suggests that there may be underlying factors contributing to the increase in crime rates. [underlying: adjective]
Example
The underlying assumption of this theory is that all humans have basic needs. [underlying: noun]
fundamental
Example
The fundamental principles of democracy include freedom and equality. [fundamental: adjective]
Example
The success of this project depends on addressing the fundamental issues first. [fundamental: adjective]
Example
The fundamental flaw in this argument is that it ignores key evidence. [fundamental: noun]
Good things to know
Which word is more common?
Fundamental is more commonly used than underlying in everyday language. Fundamental is versatile and covers a wide range of contexts, while underlying is less common and often used in technical or specialized fields.
What’s the difference in the tone of formality between underlying and fundamental?
Both underlying and fundamental can be used in formal and informal contexts, but underlying may be perceived as more technical or specialized than fundamental.
