·adj Critically discerning; sagacious; shrewd; subtle; crafty.
astūtē, adv., v. astutus fin. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
astūtē adv. astutus, craftily, cunningly : ab eā labefactarier, T.: reticere alqd. ...
An Elementary Latin Dictionary