Definition

Happening or existing at the same time as something else.

Example

The two events were simultaneous, starting at exactly the same moment.

Conversation

Did you notice that the concert and the game were planned for the same night?

Yeah, that's such a bummer! Both events are so exciting.

I wish they could have been simultaneous so we could enjoy both.

Totally! It would have been the perfect night out.

Synonyms & Antonyms

Root Explanation

Simultaneous → It is formed from "simul" (meaning at the same time) and "-taneous" (from "taneus", meaning pertaining to). The word "simultaneous" means occurring or existing at the same time.

Memory Tip

Think of things happening 'at the same time' ('simul') — that's why 'simultaneous' describes events that occur together.

Visually Confused Words