The meaning of SIMULTANEOUS is existing or occurring at the same time : exactly coincident. How to use simultaneous in a sentence. Synonym Discussion of Simultaneous.

SIMULTANEOUS meaning: 1. happening or being done at exactly the same time: 2. happening or being done at exactly the…. Learn more.

Definition of simultaneous adjective from the Oxford Advanced Learner's Dictionary. happening or done at the same time as something else. There were several simultaneous attacks by the rebels. They …

Simultaneous definition: existing, occurring, or operating at the same time; concurrent: simultaneous translation.. See examples of SIMULTANEOUS used in a sentence.

Define simultaneous. simultaneous synonyms, simultaneous pronunciation, simultaneous translation, English dictionary definition of simultaneous. adj. 1. Happening, existing, or done at the same time.

The adjective simultaneous describes something that is done at the same time as something else. "The teachers all assigned simultaneous projects to the students that week. The kids were grumbling and …

Things which are simultaneous happen or exist at the same time. ...the simultaneous release of the book and the film.

WordReference Random House Unabridged Dictionary of American English © 2025 si•mul•ta•ne•ous (sī′məl tā′ nē əs, sim′əl-), adj. existing, occurring, or operating at the same time; concurrent: …

SIMULTANEOUS definition: If two or more things are simultaneous, they happen or exist at the same time: . Learn more.

The release of the new album will be simultaneous with the release of the DVD. The speech will be broadcast simultaneously on radio and TV.