apprehensive (adjective) apprehensive: anxious, fearful
Sinonime: alternate, ambassador, assignee, attorney,
backup, broker, delegate, deputy, emissary, envoy, executor, intermediary, lawyer, mediary, negotiator, representative, stand-in, substitute, surrogate
Antonime: at ease,
calm,
quiet, unafraid, undoubting, unfearful, unsuspicious, unworried