Synonyms for Uncommitted (same or very similar meaning)
WordNet sense 1 (not busy; not otherwise committed):
availableWordNet sense 2 (able to act at will; not hampered; not under compulsion or restraint):
freeWordNet sense 3 (not definitely committed to a party or policy):
floatingWordNet sense 4 (not associated in an exclusive sexual relationship):
unattachedFrom the ODE community, based on WordNetadd/edit