Source : Webster's Revised Unabridged Dictionary (1913)

Salubrious \Sa*lu"bri*ous\, a. [L. salubris, or saluber, fr.
   salus health; akin to salvus safe, sound, well. See {Safe}.]
   Favorable to health; healthful; promoting health; as,
   salubrious air, water, or climate.

   Syn: Healthful; wholesome; healthy; salutary. --
        {Sa-lu"bri*ous*ly}, adv. -- {Sa*lu"bri*ous*ness}, n.

Source : WordNet®

salubriousness
     n : the quality of being salubrious and invigorating [syn: {salubrity}]
         [ant: {insalubrity}, {insalubrity}]