per·va·sive 
(pər-vāsĭv, -zĭv)
(pər-vāsĭv, -zĭv)adj.
Having the quality or tendency to pervade or permeate: the pervasive odor of garlic.
[From Latin pervāsus, past participle of pervādere, to pervade; see PERVADE.]
per·vasive·ly adv.
per·vasive·ness n.