WordWeb Online

1. Morally offensive
   "odoriferous legislation"
   - odiferous
    
2. Emitting an odour
   "odoriferous salt pork and weevily hardtack"
   - odorous, odiferous
    
3. Having a natural fragrance
   "odoriferous spices"
   - odorous, perfumed, scented, sweet, sweet-scented, sweet-smelling, odiferous

See also: fragrant, ill-smelling, malodorous, malodourous, minging [Brit], offensive, pongy [Brit], stinky, unpleasant-smelling, unsavory [US], unsavoury [Brit, Cdn], whiffy [Brit]