Synonyms to au fait

able, adapted, adequate, adjusted, alert, brainy, brilliant, capable, checked out, clever, competent, effective, effectual, efficacious, efficient, enigmatic, enterprising, equal to, expert, fit, fitted, fitted for, go-ahead, good, incalculable, incognizable, intelligent, journeyman, keen, mysterious, productive, proficient, proper, puzzling, qualified, sealed, sharp, skilled, skillful, smart, strange, suited, unapparent, unapprehended, unascertained, unbeknown, uncharted, unclassified, undisclosed, undiscoverable, undiscovered, undivulged, unexplained, unexplored, unexposed, unfamiliar, unfathomed, unheard, unheard-of, unidentified, uninvestigated, unknowable, unknown, unperceived, unplumbed, unrevealed, unsuspected, untouched, up to, up to snuff, up-and-coming, virgin, well-fitted, well-qualified, well-suited, wicked, worthy, abreast, abeam, acquainted, along by, alongside, au courant, beside, by, coextensively, collaterally, contemporary, conversant, equidistantly, in parallel, informed, nondivergently, parallelly, parallelwise, red-hot, side-by-side, up, up-to-date, up-to-the-minute, ver