What does infinite mean?
Infinite describes something that has no end, limit, or final quantity. In ordinary speech, the word often means immeasurably large or seemingly endless, as in “infinite possibilities” or “an infinite supply of patience.” Its precise mathematical sense is a quantity greater than every finite number or extending beyond every finite bound. The word can also evoke calm expansiveness, especially when associated with the sea, space, time, or the universe, though it may also suggest exhaustion or futility when describing an endless task. As a noun, “the infinite” names the unbounded or limitless, especially in philosophical discussions of reality, space, and time. Infinite is especially useful when discussing both the practical limits of everyday language and the abstract ideas that mathematics and philosophy examine.
Having no end, limit, or perceptible boundary; boundless or immeasurably large.
"The novel follows an infinite network of possible lives."
In nontechnical writing, it can mean simply “very numerous” or “seemingly endless.”
The state or condition of being without end or limit, especially the boundless universe or an unlimited realm of existence.
"Medieval philosophers debated the nature of the infinite."
Usually used with the definite article and most often in philosophical, theological, or mathematical contexts.
Ancient mathematicians distinguished the finite from the infinite, turning an apparently boundless idea into one of the central questions of philosophy and mathematics.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does infinite come from?
The word comes through French from Latin infinitus, formed from in- “not” and finis “end, limit,” with the participial suffix -tus. Latin already used infinitas for the concept of endlessness or boundlessness. The English adjective was established in the 17th century, and the noun meaning “the endless or limitless” also developed from the same Latin source. Related English forms include infinity, infinitude, and infinitesimally.
Related word forms
How infinite is actually used
The adjective is widely used in ordinary language for something extremely large or seemingly limitless, even when the quantity is technically finite. In technical and philosophical contexts, it can refer precisely to what has no end or bound.
Easily confused with infinite
An infinite quantity has no limit, whereas a finite quantity has a definite, measurable boundary.
Infinite is an adjective describing something without limit, while infinitive is the form of a verb that is not limited to a particular subject, tense, or mood.