Synonyms for Satisfactory:

adj.

acceptable (adjective)
allowable, adequate, favorable, acceptable, tolerable, passable, admissible, permissible, appropriate, suitable.
all (adjective)
decent, acceptable.
effective (adjective)
cogent.
persuasive (adjective)
convincing.
sufficient (adjective)
adequate, enough, bountiful, sufficient, prosperous, ample, plentiful, plenteous, abundant.

n.

reasonable. cheerful, excess, decent, pleasant, attractive, nice, relaxing, comfortable, lovely, pleasurable, restful, enjoyable. fairish, average, tidy, common, respectable, fair, goodish, moderate. persuasion, convincing, persuasive, cogent, telling. adequate (noun)
pleasing.

Other synonyms:

fairish, reasonable, goodish. fair, convincing, persuasive, cogent, pleasant. average, tidy, decent. telling, respectable. common. moderate. adequate
all-right.

Usage examples for satisfactory

  1. The result of their inquiries was not, however, very satisfactory – Lucretia, Volume 6. by Edward Bulwer-Lytton
  2. The latter did not seem entirely satisfactory – The Sign of the Spider by Bertram Mitford