Synonyms for unaccountable

Adjective

1. unaccountable, unexplainable, inexplicable (vs. explicable), incomprehensible

usage: not to be accounted for or explained; "perceptible only as unaccountable influences that hinder progress"; "an unexplainable fear"

2. unaccountable, irresponsible (vs. responsible)

usage: free from control or responsibility