Definitions: (1) skilled use of the hands; dexterous; ready; adroit; (2) performing with skill and readiness; ingenious <especially with tools>

Synonyms: helpful, useful

• Language is handy, but we humans have social and emotional connections that transcend words and are communicated – and understood – without conscious thought. — Leonard Mlodinow (1954-) American physicist
• There is an old tool that has become very handy that is called strategic patience, which is do not overreact in the short-term. Take your time. See what is the underlying, real message. And then, once the reality is represented by actions, then decide how you are going to react to those actions. — Ildefonso Guajardo Villarreal (1957-) Mexican economist and politician