What context can I use each word in?
Learn when and how to use these words with these examples!
grownup
Example
As a grownup, you should know better than to behave like that. [grownup: noun]
Example
She has a grownup job now, but still enjoys playing video games. [grownup: adjective]
adult
Example
You are legally an adult now, so you can vote and sign contracts. [adult: noun]
Example
She acted in an adult manner by taking responsibility for her actions. [adult: adjective]
Good things to know
Which word is more common?
Adult is more commonly used than grownup in everyday language. Adult is a more formal term that is used in various contexts, including legal, medical, and educational settings. Grownup is less common and is typically used in informal or playful contexts.
What’s the difference in the tone of formality between grownup and adult?
Adult is a more formal term that is used in professional and academic settings. Grownup is more informal and is often used in casual conversations or when speaking to children.