What context can I use each word in?
Learn when and how to use these words with these examples!
erratic
Example
The stock market has been behaving erratically for the past few weeks. [erratically: adverb]
Example
She has an erratic work schedule, making it difficult to plan ahead. [erratic: adjective]
unstable
Example
The ladder is unstable and needs to be secured before use. [unstable: adjective]
Example
He has been feeling emotionally unstable since the breakup. [unstable: adjective]
Example
The political situation in the country is unstable and could lead to unrest. [unstable: adjective]
Good things to know
Which word is more common?
Unstable is more commonly used than erratic in everyday language. Unstable is versatile and covers a wide range of contexts, while erratic is less common and refers to a more specific type of behavior or movement.
What’s the difference in the tone of formality between erratic and unstable?
Both erratic and unstable can be used in formal and informal contexts, but unstable may be more commonly used in technical or scientific contexts due to its broader scope.
