believable (adjective) believable: trustworthy
Sinonime: Fabian policy,
attention, canniness,
care, circumspection, deliberation, discreetness, discretion, foresight, forethought,
heed, heedfulness,
providence, prudence,
vigilance, watchfulness
Antonime: heedlessness, imprudence,
indiscretion,
neglect,
negligence, thoughtlessness