What does lengthiest mean?
Lengthiest is the superlative form of the adjective long and means greater in length, duration, or extent than other things being compared. It may describe a physical object, such as the lengthiest bridge, a period of time, such as the lengthiest wait, or something abstract, such as the lengthiest speech. The word carries a formal, slightly literary quality and is more emphatic than simply saying that something is “most long,” although that expression is also possible. Its typical patterns include “the lengthiest journey” and “the lengthiest-running programme.” While “longest” is the more common modern spelling, “lengthiest” is an accepted variant. The word is useful when a comparison involves a whole group and the speaker or writer wants to identify the member with the greatest extent or duration.
adjectiveThe superlative of long: greatest in physical or temporal extent, or lasting longer than anything else in a particular comparison.
- Having greater length than any other member of a group or comparison.
"The bridge is the lengthiest structure in the county."
"The river has the lengthiest name on the map."
"Her lengthiest lecture continued well beyond the scheduled hour."
From “long,” the familiar word for physical extent, comes the superlative lengthiest, a compact way to identify whatever stretches furthest or lasts longest.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does lengthiest come from?
The word is formed from length, which comes from Old English length and is related to the Germanic root behind long. Its Latin cognate longus also gave rise to words such as longitude and prolong. The suffix -est is the standard English superlative ending, producing lengthiest from length.
Related word forms
How lengthiest is actually used
The word is formal or literary in tone, although it is fully standard. It can describe physical extent, duration, written material, or any abstract measure involving length. In everyday speech, “longest” is often preferred.
Easily confused with lengthiest
Lengthiest is an alternative spelling of the same adjective, while longest is the more usual modern form.