Solid, firm, and resistant to pressure; not easily broken, bent, or pierced. The hard surface of the table made it ideal for writing.
Difficult to do or understand; requiring a lot of effort or skill. The math problem was hard, but she eventually solved it.
Harsh or severe in effect or quality. The hard truth was difficult for him to accept.
He preferred hard liquor over beer.
Unyielding or inflexible in attitude or behavior. She was known for her hard stance on environmental issues.
Containing a high concentration of dissolved mineral salts, especially calcium and magnesium (of water). Hard water can leave deposits on glassware.
With a great deal of effort or force. She worked hard to finish the project on time.
With difficulty or requiring a lot of effort. He thought hard about the decision he had to make.
In a severe or harsh manner. The critics came down hard on the new play.
With great intensity or energy. The rain was falling hard, making it difficult to see the road.