having no limits or boundaries in time, space, or size; endless.
The desert seemed infinite in every direction.
Space is believed to be infinite.
✦ From late Middle English infinit, via Old French from Latin infinitus ‘limitless, boundless’, from in- ‘not’ + finitus ‘finished, limited’ (related to finis ‘end, boundary’).
(mathematics) greater than any quantity that can be assigned; denoting a series, line, or other magnitude that can never be reached or terminated.
The set of natural numbers is infinite.
An infinite series never ends.
✦ The mathematical sense dates from the late 16th century, influenced by developments in calculus and set theory.