WordNet sense 1 ((of actions or states) slightly short of or not quite accomplished):

almost, most, near, nearly, nigh, virtually, well-nigh, all but, just about

WordNet sense 2 (to or among many different places or in no particular direction):

around

WordNet sense 3 (on the move):

astir

WordNet sense 4 (characterized by energetic activity):

active

WordNet sense 5 ((of quantities) imprecise but fairly close to correct):

approximately, roughly, some, close to, more or less, or so