ambidextrous

adj

1. Having equal or comparable ability in both hands; in particular, able to write well with both hands.

   “Some are […]ambidextrous or right-handed on both sides; which happeneth only unto strong and athletical bodies, whose heat and spirits are able to afford an ability unto both.”

2. Equally usable by left-handed and right-handed people (as a tool or instrument).
3. (archaic)Practising or siding with both parties.

   “All False, Shuffling, and Ambidextrous Dealings.”

4. (humorous)Of a person, bisexual.
5. Exceptionally skillful; adept in more than one medium, genre, style, etc.

   “Michelangelo was a very ambidextrous artist, producing sculptures and frescoes with equal ability.”

   “For years, by every possible device, we have been raising the prices of our agricultural products against the foreign buyers […] by every device known to the ambidextrous tradesman and financier. The result is that we have raised up other and unexpected competitors in the markets of the world.”

   “In a footnote, these admirers will often bemoan Agee as a Renaissance or at least ambidextrous artist in an age of specialization, a vast and turbulent ocean syphoned off through a garden hose; not just a novelist manque but also a frustrated […]”

   “He also played the piano and violin, was an ambidextrous artist, and enjoyed acting. Holidays were spent yachting or canoeing or with his brothers. By 1903, Baden-Powell's military training manual, Aids to Scouting, had become a best-seller,[…]”