A person who expects the worst.

Roget 483: underestimation; depreciation etc. (detraction) 934; pessimism, pessimist; undervaluing etc. v.; modesty etc. 881.   

Roget 837: dejection; dejectedness etc. adj.; depression, prosternation^†; lowness of spirits, depression of spirits; weight on the spirits, oppression on the spirits, damp on the spirits; low spirits, bad spirits, drooping spirits, depressed spirits; heart sinking; heaviness of heart, failure of heart.    heaviness etc. adj.; infestivity^†, gloom; weariness etc. 841; taedium vitae, disgust of life; mal du pays etc. (regret) 833; anhedonia^†.    melancholy; sadness etc. adj.; il penseroso [It], melancholia, dismals^†, blues, lachrymals^†, mumps^†, dumps, blue devils, doldrums; vapors, megrims, spleen, horrors, hypochondriasis [Med.], pessimism; la maladie sans maladie [Fr.]; despondency, slough of Despond; disconsolateness etc. adj.; hope deferred, blank despondency; voiceless woe.    prostration of soul; broken heart; despair etc. 859; cave of despair, cave of Trophonius demureness etc. adj.; gravity, solemnity; long face, grave face.    hypochondriac, seek sorrow, self-tormentor, heautontimorumenos^†, malade imaginaire [Fr.], medecin tant pis [Fr.]; croaker, pessimist; mope, mopus^†.    [Cause of dejection] affliction etc. 830; sorry sight; memento mori [Lat.]; damper, wet blanket, Job's comforter.    ... show more

Roget 859: hopelessness etc. adj.; despair, desperation; despondency, depression etc. (dejection) 837; pessimism, pessimist; Job's comforter; bird of bad omen, bird of ill omen.    abandonment, desolation; resignation, surrender, submission etc. 725.    hope deferred, dashed hopes; vain expectation etc. (disappointment) 509.    airy hopes etc. etc. 858; forlorn hope; gone case, dead duck, gone coon [U.S.]; goner [Slang]; bad job, bad business; enfant perdu [Fr.]; gloomy horizon, black spots in the horizon; slough of Despond, cave of Despair; immedicabile vulnus [Lat.].    ... show more

Roget 862: cowardice, pusillanimity; cowardliness etc. adj.; timidity, effeminacy.    poltroonery, baseness; dastardness^†, dastardy^†; abject fear, funk; Dutch courage; fear etc. 860; white feather, faint heart; cold feet [U.S.], yellow streak [Slang].    coward, poltroon, dastard, sneak, recreant; shy cock, dunghill cock; coistril^†, milksop, white liver, lily liver, nidget^†, one that cannot say 'boo' to a goose; slink; Bob Acres, Jerry Sneak.    alarmist, terrorist^†, pessimist; runagate etc. (fugitive) 623.    ... show more

Roget 482: overestimation etc. v.; exaggeration etc. 549; vanity etc. 880; optimism, pessimism, pessimist.    much cry and little wool, much ado about nothing; storm in a teacup, tempest in a teacup; fine talking.    ... show more

Dutch: zwartdenker, doemdenker, pessimist, zuurkijker, zwartkijker
Polish: pesymista, czarnowidz