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Related to obtuse: obtuse triangle
not quick or alert in perception, feeling, or intellect; dull, blunt, unfeeling, tactless, insensitive: an obtuse statement made without considering its effect; slow, dim; boorish; indistinctly felt or perceived, as pain or sound
Not to be confused with:
abstruse – hard to understand; esoteric: abstruse theories; recondite, incomprehensible, unfathomable, arcane
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree
ob·tuse(ŏb-to͞os′, -tyo͞os′, əb-)
adj. ob·tus·er, ob·tus·est
a. Lacking quickness of perception or intellect.
b. Characterized by a lack of intelligence or sensitivity: an obtuse remark.
c. Not distinctly felt: an obtuse pain.
a. Not sharp, pointed, or acute in form; blunt.
b. Having an obtuse angle: an obtuse triangle.
c. Botany Having a blunt or rounded tip: an obtuse leaf.
[Middle English, from Old French, from Latin obtūsus, past participle of obtundere, to blunt; see obtund.]
Usage Note: Obtuse is sometimes used where one might expect abstruse instead, but the Usage Panel is divided on the acceptability of these usages. In our 2009 survey, 55 percent of the Usage Panel rejected obtuse meaning "recondite," as in The reader has to struggle through dense prose and obtuse references to modern philosophers. Some 52 percent rejected the word when used to mean "indirect or oblique" in the sentence Divorce is mentioned, and there are a few obtuse references to sex. By contrast, 56 percent accepted sentences in which obtuse was used to mean "hard to follow or understand" in the phrases obtuse instructions and obtuse explanation. Perhaps the use of the word as a sophisticated synonym of stupid makes these extended derogatory uses more tolerable than they otherwise might be.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. mentally slow or emotionally insensitive
2. (Mathematics) maths
a. (of an angle) lying between 90° and 180°
b. (of a triangle) having one interior angle greater than 90°
3. not sharp or pointed
4. indistinctly felt, heard, etc; dull: obtuse pain.
5. (Botany) (of a leaf or similar flat part) having a rounded or blunt tip
[C16: from Latin obtūsus dulled, past participle of obtundere to beat down; see obtund]
obˈtuseness, obˈtusity n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. not quick or alert in perception, feeling, or intellect; insensitive; dull.
2. not sharp, acute, or pointed; blunt.
3. (of a leaf, petal, etc.) rounded at the extremity.
4. indistinctly felt or perceived, as pain or sound.
[1500–10; < Latin obtūsus blunt; see obtund]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Adj.||1.||obtuse - of an angle; between 90 and 180 degrees|
acute - of an angle; less than 90 degrees
|2.||obtuse - (of a leaf shape) rounded at the apex|
|3.||obtuse - lacking in insight or discernment; "too obtuse to grasp the implications of his behavior"; "a purblind oligarchy that flatly refused to see that history was condemning it to the dustbin"- Jasper Griffin|
undiscerning - lacking discernment
|4.||obtuse - slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"|
stupid - lacking or marked by lack of intellectual acuity
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
adjective stupid, simple, slow, thick, dull, dim, dense, dumb (informal), sluggish, retarded, simple-minded, dozy (Brit. informal), witless, stolid, dopey (informal), moronic, brainless, uncomprehending, cretinous, unintelligent, half-witted, slow on the uptake (informal), braindead (informal), dumb-ass (informal), doltish, dead from the neck up (informal), boneheaded (slang), thickheaded, dull-witted, imperceptive, slow-witted, muttonheaded (slang), thick as mince (Scot. informal), woodenheaded (informal) I think you're being deliberately obtuse.
quick, bright, sharp, keen, smart, clever, shrewd, astute
quick, bright, sharp, keen, smart, clever, shrewd, astute
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Math) → obtuso
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
obtuse[əbˈtjuːs] adj (gen) (Math) → ottuso/a; (remark) → stolto/a
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
(of an angle) greater than a right-angle. stomp, stoets مُنْفَرِج الزاويَه тъп ъгъл obtuso tupý stumpf stump αμβλύςobtuso nürinurkne منفرجه؛ باز tylppäkulmainen obtus זָווִית קֵהָה अधिक tup tompa tumpul sljór ottuso 鈍角の 둔각의 bukas plats (leņķis) cakah stompstumprozwarty تر نوى درجى زياته obtuso obtuz тупой tupý top tup ugao trubbig ซึ่งเป็นมุมป้าน geniş açı 鈍角的，圓頭的 тупий زاويۂ قائمہ يا منفرجہ سے بڑا زاويہ tù (góc) 钝角的，圆头的
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
1. que le falta agudeza mental;
2. romo-a, mellado-a.
English-Spanish Medical Dictionary © Farlex 2012