the mind > mental capacity > knowledge > hiding, concealing from view > keeping from knowledge > hidden or indirect meaning > [adjective] > communicating indirectly (4)
whispering1581
Reporting something secretly or confidentially; esp. secretly slanderous, talebearing, backbiting.
whistering1586
insinuative1649
Characterized by or involving insinuation or suggestion; given to or making insinuations; prone to allusive suggestion; suggestive, hinting.