American Heritage Dictionary Entry: perfect HOW TO USE THE DICTIONARY To look up an entry in The American Heritage Dictionary of the English Language, use the search window above. For best results, after typing in the word, click on the “Search” button instead of using the “enter” key. Some compound words (like bus rapid transit, dog whistle, or identity theft) don’t appear on the drop-down list when you type them in the search bar. For best results with compound words, place a quotation mark before the compound word in the search window. guide to the dictionary THE USAGE PANEL The Usage Panel is a group of nearly 200 prominent scholars, creative writers, journalists, diplomats, and others in occupations requiring mastery of language. Annual surveys have gauged the acceptability of particular usages and grammatical constructions. The Panelists NEED HELP SOLVING A CROSSWORD PUZZLE? Go to our Crossword Puzzle Solver and type in the letters that you know, and the Solver will produce a list of possible solutions. -- AMERICAN HERITAGE DICTIONARY APP The new American Heritage Dictionary app is now available for iOS and Android. THE AMERICAN HERITAGE DICTIONARY BLOG The articles in our blog examine new words, revised definitions, interesting images from the fifth edition, discussions of usage, and more. OPEN DICTIONARY PROJECT Share your ideas for new words and new meanings of old words! Start Sharing Now! -- See word lists from the best-selling 100 Words Series! Find out more! INTERESTED IN DICTIONARIES? Check out the Dictionary Society of North America at http://www.dictionarysociety.com per·fect (pûrfĭkt) Share: Tweet adj. 1. Lacking nothing essential to the whole; complete of its nature or kind. 2. Being without defect or blemish: a perfect specimen. 3. Thoroughly skilled or talented in a certain field or area; proficient. 4. Completely suited for a particular purpose or situation: She was the perfect actress for the part. 5. a. Completely corresponding to a description, standard, or type: a perfect circle; a perfect gentleman. b. Accurately reproducing an original: a perfect copy of the painting. 6. Complete; thorough; utter: a perfect fool. 7. Pure; undiluted; unmixed: perfect red. 8. Excellent and delightful in all respects: a perfect day. 9. Botany Having both stamens and pistils in the same flower; monoclinous. 10. Capable of sexual reproduction. Used of fungi. 11. Grammar Of, relating to, or constituting a verb form expressing action completed prior to a fixed point of reference in time. 12. Music Designating the three basic intervals of the octave, fourth, and fifth. n. 1. Grammar The aspect of a verb that expresses action completed prior to a fixed point of reference in time. 2. A verb or verb form having this aspect. tr.v. (pər-fĕkt) per·fect·ed, per·fect·ing, per·fects To bring to perfection or completion: perfected the technique to isolate the virus. [Middle English perfit, from Old French parfit, from Latin perfectus, past participle of perficere, to finish : per-, per- + facere, to do; see dhē- in the Appendix of Indo-European roots.] per·fecter n. perfect·ness n. Synonyms: perfect, consummate, faultless, flawless, impeccable These adjectives mean being wholly without flaw: a perfect diamond; a consummate performer; faultless logic; a flawless instrumental technique; speaks impeccable French. Usage Note: The adjective perfect is often considered an absolute term like chief and prime; some maintain that it therefore cannot be modified by more, quite, relatively, and other qualifiers of degree. But the qualification of perfect has many reputable precedents (most notably in the preamble to the US Constitution in the phrase “in order to form a more perfect Union”). When perfect means “ideal for a purpose,” as in There could be no more perfect spot for the picnic, modification by degree is considered acceptable; in fact 74 percent of the Usage Panel approved this example in our 2004 survey. See Usage Notes at absolute, equal, unique. The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved. Indo-European & Semitic Roots Appendices Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices: Indo-European Roots Semitic Roots The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots. 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