| Main Entry: | |
| Part of Speech: | verb |
| Definition: | deteriorate, crumble |
| Synonyms: | atrophy, be impaired, become contaminated, blight, break up, collapse, corrode, curdle, decline, decompose, defile, degenerate, depreciate, discolor, disintegrate, dissolve, dry-rot, dwindle, fade, fail, get worse, go bad, go to seed, go to the dogs, hit rock bottom, hit the skids, lessen, mildew, mold, molder, mortify, pejorate, perish, pollute, putrefy, putresce, reach depths, rot, sap, shrivel, sicken, sink, slump, spoil, suppurate, turn, wane, waste away, weaken, wear away, wither |
| Antonyms: | build, develop, flourish, germinate, grow, improve, ripen, strengthen |
| Main Entry: | deteriorate |
| Part of Speech: | verb |
| Definition: | decay, degenerate |
| Synonyms: | adulterate, alloy, be worse for wear, become worse, break, corrode, corrupt, crumble, debase, debilitate, decline, decompose, degrade, deprave, depreciate, descend, disimprove, disintegrate, ebb, fade, fail, fall apart, flag, go downhill, go to pieces, go to pot, go to the dogs, hit the skids, impair, injure, languish, lapse, lessen, lose it, lose quality, lower, mar, pervert, regress, retrograde, retrogress, rot, sink, skid, slide, spoil, undermine, vitiate, weaken, wear away, worsen |
| Notes: | to degenerate means 'to decline in value, move lower on a scale' but to deteriorate means 'to worsen, to become lowered, or be reduced in value'; degenerate pertains more to character and virtue while deteriorate is more about loss of strength or vitality |
| Antonyms: | build, construct, develop, get better, improve |
| Main Entry: | fail |
| Part of Speech: | verb |
| Definition: | be unsuccessful |
| Synonyms: | abort, back wrong horse, backslide, be defeated, be demoted, be found lacking, be in vain, be ruined, blunder, break down, come to naught, come to nothing, decline, deteriorate, fall, fall flat, fall short, fall through, fizzle, flop, flounder, fold, founder, go astray, go down swinging, go down, go downhill, go up in smoke, go wrong, hit bottom, hit the skids, lose control, lose out, lose status, meet with disaster, miscarry, miss, miss the boat, play into, run aground, slip, turn out badly |
| Antonyms: | accomplish, achieve, earn, gain, merit, obtain, prosper, reach, succeed, win |
| Main Entry: | miscarry |
| Part of Speech: | verb |
| Definition: | fail to attain goal |
| Synonyms: | abort, back wrong horse, backslide, be defeated, be demoted, be found lacking, be in vain, be ruined, blunder, break down, come to naught, come to nothing, decline, deteriorate, fall, fall flat, fall short, fall through, fizzle, flop, flounder, fold, founder, go astray, go down swinging, go down, go downhill, go up in smoke, go wrong, hit bottom, hit the skids, lose control, lose out, lose status, meet with disaster, misfire, miss, miss fire, miss the boat, miss the mark, play into, run aground, slip*, turn out badly |