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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | at right angles to |
| Synonyms: | erect, horizontal, on end, plumb, sheer, stand-up, standing, steep, straight, straight-up, upright, vertical |
| Antonyms: | horizontal, level |
| Main Entry: | erect |
| Part of Speech: | adjective |
| Definition: | straight up |
| Synonyms: | arrect, cocked, elevated, erectile, firm, perpendicular, raised, rigid, standing, stiff, upright, upstanding, vertical |
| Antonyms: | prone, prostrate |
| Main Entry: | plumb |
| Part of Speech: | adjective |
| Definition: | vertical |
| Synonyms: | erect, perpendicular, sheer, straight, straight up, up and down, upright |
| Notes: | a plum is any of numerous varieties of small to medium-sized round or oval smooth-skinned fruit with a single pit, while a plumb is a weight on the end of a line used to determine water depth or used to establish a true vertical |
| Antonyms: | flat, horizontal, level |
| Main Entry: | precipitous |
| Part of Speech: | adjective |
| Definition: | steep, falling sharply |
| Synonyms: | abrupt, arduous, craggy, dizzy, dizzying, high, perpendicular, precipitate, sharp, sheer |
| Notes: | precipitous 'hasty, sudden and dramatic' is used in relation to physical or natural objects; precipitate 'done with great haste' relates to human actions or processes |
| Antonyms: | gradual |
| Main Entry: | sheer |
| Part of Speech: | adjective |
| Definition: | abrupt, steep |
| Synonyms: | arduous, erect, headlong, perpendicular, precipitate, precipitous, sideling, upright |
| Notes: | shear(s) (noun) are large scissors with strong blades - (verb) to remove fleece, hair, or foliage by cutting or clipping; sheer (adjective) means complete and without restriction or qualification - (verb) turn sharply or change direction abruptly |
| Antonyms: | moderate, slow |
| Main Entry: | steep |
| Part of Speech: | adjective |
| Definition: | extreme in direction, course |
| Synonyms: | abrupt, arduous, breakneck, declivitous, elevated, erect, headlong, high, hilly, lifted, lofty, perpendicular, precipitate, precipitous, prerupt, raised, sharp, sheer, straight-up |
| Notes: | a gentle slope is a glacis; a precipitous slope is a steep |
| Antonyms: | gentle, mild, moderate |
| Main Entry: | straight |
| Part of Speech: | adjective |
| Definition: | aligned; not curved |
| Synonyms: | beeline, collinear, consecutive, continuous, direct, erect, even, horizontal, in a line, in a row, in line, inflexible, invariable, level, like an arrow, lineal, linear, near, nonstop, perpendicular, plumb, precipitous, rectilineal, rectilinear, right, running, sheer, short, smooth, solid, square, straightforward, successive, through, true, unbent, unbroken, uncurled, undeviating, undistorted, uninterrupted, unrelieved, unswerving, upright, vertical |
| Antonyms: | curved, indirect, twisted |
| Main Entry: | upright |
| Part of Speech: | adjective |
| Definition: | straight-up |
| Synonyms: | cocked, end on, end up, erect, on end, perpendicular, plumb, raised, sheer, stand-up, standing, steep, straight, upended, upstanding, upward, vertical |
| Antonyms: | fallen, lying, prone |
| Main Entry: | vertical |
| Part of Speech: | adjective |
| Definition: | upright |
| Synonyms: | bolt upright, cocked, erect, on end, perpendicular, plumb, sheer, steep, straight-up, up-and-down, upward |
| Antonyms: | horizontal, prone |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
