1. (a.) Giving or producing satisfaction; yielding content; especially, relieving the mind from doubt or uncertainty, and enabling it to rest with confidence; sufficient; as, a satisfactory account or explanation.

2. (a.) Making amends, indemnification, or recompense; causing to cease from claims and to rest content; compensating; atoning; as, to make satisfactory compensation, or a satisfactory apology.

OK absolute acceptable adequate admissible all right ample assuring authoritative barely sufficient better than nothing cogent comfortable commensurate competent conclusive convictional convincing corresponding decent decisive determinative due enough equal to fair fairish fit good good enough goodish impressive minimal minimum moderate not amiss not bad not half bad not so bad okay passable persuasive plenty plenty good enough presentable pretty good proportionable proportionate respectable satisfying solid sound substantial sufficient sufficient for sufficing suitable telling tidy tolerable unexceptionable unexceptional unimpeachable unobjectionable up to workmanlike