What is the opposite of “annual”?

What is the antonym of “annual”?

The antonym of annual are biennial, triennial, and irregular. These words describe the frequency or regularity of an event or occurrence.

Brief Definitions of the Antonym(s)

Learn when and how to use these words with these examples!

biennial

Occurring every two years.

Example

The festival is a biennial event that attracts visitors from all over the world.

triennial

Occurring every three years.

Example

The company conducts a triennial survey to gather feedback from its employees.

irregular

Not occurring at fixed intervals; lacking consistency or predictability.

Example

The team's performance has been irregular this season, with some wins and some losses.

How are these antonyms different from each other?

• 1. Biennial and triennial describe events that occur every two or three years respectively, while annual describes an event that occurs once a year.
• 2. Irregular is a complementary antonym that describes events that do not occur at fixed intervals or lack consistency.

Good things to know

• 1. Planning: Use these antonyms to describe the frequency of events or occurrences when making plans.
• 2. History: Use biennial and triennial to describe the frequency of historical events.
• 3. Nature: Use these antonyms to describe the life cycle of plants and animals.

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Remember this!

The antonyms of annual describe the frequency or regularity of events or occurrences. Biennial and triennial describe events that occur every two or three years respectively, while irregular describes events that do not occur at fixed intervals or lack consistency. Use these words when planning events, describing historical events, or discussing the life cycle of plants and animals.