familiar by use or study (usually fol. by with )

conversant with Spanish history.

Archaic . having regular or frequent conversation; intimately associating; acquainted.

adjective

ignorant , inexperienced , quiet , silent

adjective

abreast , acquainted , alive , apprehensive , au courant , au fait , aware , cognizant , comprehending , conscious , cool * , down with , hep , hip * , informed , into , kept posted , knowing , knowledgeable , learned , on the beam , perceptive , percipient , plugged in , practiced , proficient , sensible , sentient , skilled , up * , up-to-date , versant , versed , well-informed , witting , adept , awake , experienced , expert , familiar , hip