WordNet sense 1 (having an acceptable credit rating):

creditworthy

WordNet sense 2 (worthy of trust or belief):

trustworthy, trusty

WordNet sense 3 (held legally responsible):

liable

WordNet sense 4 (liable to answer to a higher authority):

amenable

WordNet sense 5 (morally or legally responsible to a higher authority):

answerable

WordNet sense 6 (liable to account for one's actions):

accountable

WordNet sense 7 (producing an effect):

causative