knowledgeable

adjective

1 a knowledgeable old man:

well informed, informed, learned, with great knowledge, well read, well educated, educated, widely read, erudite, scholarly, cultured, cultivated, enlightened, aware.

▷antonyms ignorant.

2 we need to appoint someone who is knowledgeable about modern art:

acquainted with, familiar with, with a knowledge of, with an understanding of, conversant with, au courant with, au fait with;

skilled, expert, competent, proficient;

up on, up to date with, abreast of, at home with, no stranger to;

experienced in, practiced in, well versed in, seasoned;

informal clued up about, genned up about, plugged into;

British, informal switched on to.

▷antonyms ill-informed.