What context can I use each word in?
Learn when and how to use these words with these examples!
unpredictable
Example
The weather in this region is unpredictable, so it's best to bring a jacket just in case. [unpredictable: adjective]
Example
Her moods are unpredictable, making it hard to know how she will react to certain situations. [unpredictable: adjective]
erratic
Example
His driving was erratic, swerving from lane to lane without warning. [erratic: adjective]
Example
The stock market has been behaving erratically lately, making it difficult to predict future trends. [erratically: adverb]
Good things to know
Which word is more common?
Unpredictable is more commonly used in formal contexts, such as academic or scientific writing. Erratic is more informal and is often used in everyday conversation.
What’s the difference in the tone of formality between unpredictable and erratic?
Unpredictable is considered more formal than erratic, and is often used in technical or professional settings.
