...Some of the more intelligent understood the explanations well, and expatiated eloquently on them to the more obtuse... 
David Livingstone 「Missionary Travels and Researches in South Africa」
...There are long, wide streets, two of which, meeting at an obtuse angle, form together an extent of nearly a mile...
Horatio Bridge 「Journal of an African Cruiser」
...It is thencontinued down angularly to about the centre of the anterior edgeof the scapular shield, where it forms an obtuse angle with itsposterior but major half...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Palpi compressed convexly on the front of the head, meeting above the tongue; the last joint very minute, thick, obtuse, approximating and bent forward...
William Swainson 「Zoological Illustrations, Volume I」
...The club of their antennæ is very thick, obtuse, and without any terminal hook...
William Swainson 「Zoological Illustrations, Volume I」
...Bill longer than the head, thick, light, curved, thickened at the basal margin, the frontal angle obtuse, the margins serrated...
William Swainson 「Zoological Illustrations, Volume I」
...Cylindric elongated; whitish, with two yellowish bands, and transverse elevated striæ; spire thick, obtuse...
William Swainson 「Zoological Illustrations, Volume II」
...Theyexhibited concentric obtuse ridges on the interiorside, and a large basin-shaped area behind the hinge...
W. E. Webb 「Buffalo Land」
...Fortunately for Van Slyck, however,he was obtuse to irony...
John Charles Beecham 「The Argus Pheasant」
...Obtuse-angulate: two markings or marginsmeeting so as to form an obtuse angle...
John. B. Smith 「Explanation of Terms Used in Entomology」
...The sensitiveschedule of the Cerambyx-grub, therefore, is limited to taste andtouch, both exceedingly obtuse...
Jean Henri Fabre Alexander Teixeira de Mattos 「The Glow-Worm and Other Beetles」
...What evidence of obtuse intelligence! ...
J. Henri Fabre Alexander Teixeira de Mattos 「The Mason-bees」
...Its obtuse roof is justabout the true angle...
John Ruskin 「The Poetry of Architecture」
...It may be described as formed by the two upper sides of a triangle,more or less obtuse or acute...
Matthew Holbeche Bloxam 「The Principles of Gothic Ecclesiastical Architecture, Elucidated by Question and Answer, 4th ed.」
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