Source : Webster's Revised Unabridged Dictionary (1913)

Admonitory \Ad*mon"i*to*ry\, a. [LL. admonitorius.]
   That conveys admonition; warning or reproving; as, an
   admonitory glance. -- {Ad*mon"i*to*ri*ly},, adv.

Source : WordNet®

admonitory
     adj 1: serving to warn; "shook a monitory finger at him"; "an
            exemplary jail sentence" [syn: {cautionary}, {exemplary},
             {monitory}, {warning(a)}]
     2: expressing reproof or reproach especially as a corrective
        [syn: {admonishing}, {reproachful}, {reproving}]