obtuse

== English == === Etymology === From Middle English obtuse, from Latin obtūsus (“blunt, dull; obtuse”), past participle of obtundere, from obtundō (“to batter, beat, strike; to blunt, dull”), from ob- (“against”) (see ob-) + tundō (“to beat, strike; to bruise, crush, pound”) (ultimately from Proto-Indo-European *(s)tewd-, from *(s)tew- (“to hit; to push”)). More at obtund. === Pronunciation === (UK) IPA(key): /əbˈtjuːs/, /-ˈtʃuːs/ (General American) IPA(key): /əbˈt(j)us/, /ɑb-/ Rhymes: -uːs Hyphenation: ob‧tuse === Adjective === obtuse (comparative obtuser or more obtuse, superlative obtusest or most obtuse) (now chiefly botany, zoology) Blunt; not sharp, pointed, or acute in form. (botany, zoology) Blunt, or rounded at the extremity. (geometry, specifically, of an angle) Larger than one, and smaller than two right angles, equivalently more than 90° and less than 180°. Hypernym: salient (geometry, by ellipsis) Obtuse-angled, having an obtuse angle. Intellectually dull or dim-witted. Of sound, etc.: deadened, muffled, muted. Indirect or circuitous. ==== Synonyms ==== (intellectually dull): dense, dim, dim-witted, thick (informal), thickheaded (of a sound): deadened, muffled (of a triangle): obtuse-angled (now chiefly botany, zoology): blunt, dull ==== Antonyms ==== (antonym(s) of “intellectually dull”): bright, intelligent, on the ball, quick off the mark, quick-witted, sharp, smart (antonym(s) of “deadened, muffled, muted”): clear, sharp (antonym(s) of “of an angle”): acute (antonym(s) of “of a triangle”): acute, acute-angled (antonym(s) of “now chiefly botany, zoology”): pointed, sharp ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === Verb === obtuse (third-person singular simple present obtuses, present participle obtusing, simple past and past participle obtused) (transitive, obsolete) To dull or reduce an emotion or a physical state. ==== Translations ==== === Further reading === obtuse (disambiguation) on Wikipedia.Wikipedia William Dwight Whitney, Benjamin Eli Smith, editors (1895–1910), “obtuse”, in The Century Dictionary and Cyclopedia: […], New York, N.Y.: The Century Co., →OCLC. “obtuse”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. “obtuse”, in OneLook Dictionary Search. === Anagrams === buteos == French == === Pronunciation === IPA(key): /ɔp.tyz/ === Adjective === obtuse feminine singular of obtus === Anagrams === boutes == Latin == === Adjective === obtūse vocative masculine singular of obtūsus === References === “obtuse”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press “obtuse”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.