Here are some examples:
* "The annual meeting was a success." (annual describes the circumstance of the meeting happening every year)
* "He gave a brief presentation." (brief describes the circumstance of the presentation's length)
* "She made a sudden decision." (sudden describes the circumstance of the decision being made quickly)
* "The previous owner left the house in good condition." (previous describes the circumstance of the ownership being in the past)
Key characteristics of an adjective of circumstance:
* They often answer questions like when, where, how, why, or to what extent.
* They provide context and information about the situation surrounding the noun.
* They are usually placed before the noun they modify, but can sometimes follow.
While not a formal grammatical term, understanding adjectives of circumstance can help you better analyze and understand the meaning of sentences.