- most reliable or complete, as of a text, author, criticism, study, or the like: the definitive biography of Andrew Jackson.
- serving to define, fix, or specify definitely: to clarify with a definitive statement.
- having its fixed and final form; providing a solution or final answer; satisfying all criteria: the definitive treatment for an infection; a definitive answer to a dilemma.
- Biology. fully developed or formed; complete.
Origin of definitive
SynonymsSee more synonyms for definitive on Thesaurus.com
3. complete, absolute, ultimate, supreme.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for definitiveness
- serving to decide or settle finally; conclusive
- most reliable, complete, or authoritativethe definitive reading of a text
- serving to define or outline
- zoology fully developed; completethe definitive form of a parasite
- (of postage stamps) permanently on sale
- (as noun)a definitive postage stamp
- grammar a word indicating specificity of reference, such as the definite article or a demonstrative adjective or pronoun
Word Origin and History for definitiveness
late 14c., from Old French definitif (12c.), from Latin definitivus "explanatory, definitive," from past participle stem of definire (see define). Related: Definitively.
Online Etymology Dictionary, © 2010 Douglas Harper