Able to cause disease.

synonyms: infective, pathogenic.

Roget 655: diseased; ailing etc. v.; ill, ill of; taken ill, seized with; indisposed, unwell, sick, squeamish, poorly, seedy; affected with illness, afflicted with illness; laid up, confined, bedridden, invalided, in hospital, on the sick list; out of health, out of sorts; under the weather [U.S.]; valetudinary^†.    unsound, unhealthy; sickly, morbid, morbose^†, healthless^†, infirm, chlorotic [Med.], unbraced^†.    drooping, flagging, lame, crippled, halting.    morbid, tainted, vitiated, peccant, contaminated, poisoned, tabid^†, mangy, leprous, cankered; rotten, rotten to the core, rotten at the core; withered, palsied, paralytic; dyspeptic; luetic^†, pneumonic, pulmonic [Med.], phthisic^†, rachitic; syntectic^†, syntectical^†; tabetic^†, varicose.    touched in the wind, broken-winded, spavined, gasping; hors de combat etc. (useless) 645 [Fr.].    weakly, weakened etc. (weak) 160; decrepit; decayed etc. (deteriorated) 659; incurable etc. (hopeless) 859; in declining health; cranky; in a bad way, in danger, prostrate; moribund etc. (death) 360.    morbific etc. 657^†; epidemic, endemic; zymotic^†.    ... show more

Roget 657: insalubrious; unhealthy, unwholesome; noxious, noisome; morbific^†, morbiferous^†; mephitic, septic, azotic^†, deleterious; pestilent, pestiferous, pestilential; virulent, venomous, envenomed; poisonous, toxic, toxiferous^†, teratogenic; narcotic.    contagious, infectious, catching, taking, epidemic, zymotic^†; epizootic.    innutritious^†, indigestible, ungenial; uncongenial etc. (disagreeing) 24.    deadly etc. (killing) 361.    ... show more