What does fullness mean?
Fullness is the noun form of the quality of being full: the state of containing all that something can hold, or of being complete and rich in some respect. In its most literal sense it describes physical capacity — the fullness of a glass, a warehouse, or the stomach after a generous meal. More abstractly, the word conveys completeness, abundance, and depth of experience, as in phrases like "in the fullness of time" or "the fullness of life." Its connotations are largely positive, suggesting satisfaction, ripeness, and plenty, though it can also describe uncomfortable overindulgence. Derived from Old English roots shared with the verb to fill, fullness appears throughout religious and literary tradition, where it often signifies spiritual or divine completeness. It remains a versatile and evocative word, equally at home in describing a hearty dinner, a rounded sound, or a life lived to its utmost measure.
nounThe state or quality of being full; the condition of containing or holding as much as possible, whether physically, emotionally, or in terms of completeness or richness.
- The state of containing or holding as much as possible (physical fullness, e.g. of a container or the stomach)
- Completeness or wholeness in an abstract sense, such as richness of experience or emotion
- Roundness or plumpness of form, especially in visual descriptions of shape or sound
"She spoke with a quiet fullness that suggested years of unspoken feeling."
"He leaned back with the comfortable fullness of a holiday meal behind him."
"Only in the fullness of time did the significance of her discovery become clear."
Rarely used; fullness is almost always treated as an uncountable abstract quality, so the plural appears only in specialized contexts.
"The composer layered the piece to achieve different fullnesses across its movements."
In the King James Bible's phrase "in the fullness of time," the word gave English one of its most enduring expressions for destiny arriving exactly when it should.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of fullness
Fullness descends directly from Old English, formed from the adjective "full" combined with the noun-forming suffix "-ness." The root traces back through Proto-Germanic *fullaz, related to the verb "fill," making fullness a sibling of modern words like fulfil, plentiful, and fill itself. An older spelling, "fulness," was standard until roughly the nineteenth century before the double-l form became universal. German retains a close cognate in "Fülle," reflecting their shared Germanic origin.
Related word forms
How fullness is actually used
Fullness carries broadly positive connotations of satisfaction, richness, and completion, though physical fullness can shade into discomfort after overeating. It is a common word in both everyday and literary language, appearing frequently in religious and philosophical writing where "fullness" can denote spiritual perfection or divine completeness. The older spelling "fulness" survives mainly in historical texts.
Easily confused with fullness
"Fulness" is simply the older British spelling of the same word; "fullness" is now standard in both British and American English.
"Fulsomeness" refers to excessive or cloying abundance, often insincere flattery, whereas "fullness" is neutral, describing the state of being complete or filled.