| Main Entry: | |
| Part of Speech: | noun |
| Definition: | lowest point |
| Synonyms: | all-time low, base, bottom, floor, low point, record low, rock bottom, zero level |
| Notes: | zenith derived from Arabic samt ar-ras 'the way or road above one's head'; zenith technically is the point directly above the observer and nadir is the point directly below |
| Main Entry: | extreme |
| Part of Speech: | noun |
| Definition: | ultimate; limit |
| Synonyms: | acme, apex, apogee, bitter end, boundary, ceiling, climax, consummation, crest, crown, culmination, depth, edge, end, excess, extremity, height, inordinancy, maximum, nadir, nth degree, peak, pinnacle, pole, termination, top, utmost, uttermost, zenith |
| Main Entry: | extremity |
| Part of Speech: | noun |
| Definition: | ultimate; limit |
| Synonyms: | acme, acuteness, adversity, apex, apogee, border, bound, boundary, brim, brink, butt, climax, consummation, crisis, depth, dire straits, disaster, edge, end, excess, extreme, extremes, frontier, height, last, margin, maximum, nadir, outside, pinnacle, plight, pole, remote, rim, setback, terminal, termination, terminus, tip, top, trouble, verge, vertex, zenith |
| Main Entry: | floor |
| Part of Speech: | noun |
| Definition: | bottom of a room; level of a multistory building |
| Synonyms: | basement, boards, canvas, carpet, cellar, deck, downstairs, flat, flooring, ground, landing, lowest point, mat, mezzanine, nadir, rug, stage, story, tier, upstairs |
| Antonyms: | ceiling |
| Main Entry: | foot |
| Part of Speech: | noun |
| Definition: | base of an object |
| Synonyms: | bottom, foundation, lowest point, nadir, pier |
| Antonyms: | lid, top |
| Main Entry: | minimum |
| Part of Speech: | noun |
| Definition: | lowest amount |
| Synonyms: | atom, bottom, dab, depth, dot, gleam, grain, hair, iota, jot, least, lowest, margin, modicum, molecule, nadir, narrowest, particle, pittance, point, scintilla, scruple, shadow, slightest, smallest, smidgen, soupçon, spark, speck, trifle, whit |
| Antonyms: | largest, maximum, most |
| Main Entry: | zero |
| Part of Speech: | noun |
| Definition: | nothing |
| Synonyms: | aught, blank, bottom, cipher, insignificancy, love*, lowest point, nada, nadir, naught, nil, nix, nobody, nonentity, nought, nullity, oblivion, ought, rock bottom, scratch, shutout, void, zilch, zip, zot |
| Antonyms: | anything, being, something, thing |
| Main Entry: | rock bottom |
| Part of Speech: | noun |
| Definition: | absolute bottom |
| Synonyms: | all-time low, base, bedrock, depths, nadir, record low, solid bottom, solid rock |
| Main Entry: | undersurface |
| Part of Speech: | noun |
| Definition: | bottom |
| Synonyms: | base, basement, basis, bed, bedrock, belly, deepest part, depths, floor, foot, footing, ground, groundwork, lowest part, nadir, nether portion, pedestal, pediment, rest, seat, sole, substratum, substructure, support, terra firma, underbelly, underneath, underside |