• assignment, charge, commission, errand, mandate, order
• dependably, trustworthily
• solidity, soundness, staunchness, sureness, trustiness, trustworthiness
• equivocal, insecure, irresponsible, skittish, slippery, trustless, twisty, unreliable, unsteady, untrustworthy
• to confide in sy, to trust in sy
• date of completion of mandate