Synonyms of insalubrious

2 Syllables
septic, toxic, harmful, noxious, rotten, lethal, spoiled
3 Syllables
pernicious, unhealthful, venomous, poisonous, dangerous, noisome, unhealthy, virulent
4 Syllables
deleterious, unnutritious, destructive
5 Syllables
contaminated, unsalutary, insalutary, unwholesome