- existing or being everywhere, especially at the same time; omnipresent: ubiquitous fog; ubiquitous little ants.
- having or seeming to have the ability to be everywhere at once; omnipresent
adj.“turning up everywhere,” 1837, from ubiquity + -ous. The earlier word was ubiquitary (1580s), from Modern Latin ubiquitarius, from ubique. Related: Ubiquitously; ubiquitousness.