Marked by or experiencing difficulty, as if by bad luck.

(US, film, historical) Being or relating to a long-running blockbuster film with the possibility of seat reservations.

plural of hard truth

plural of hard fork

(cryptocurrencies) A rule change of a blockchain such that the software validating according to the old rules will see the blocks produced according to the new rules as invalid; the new blockchain resulting from such a split.

(travel, informal) A class of accommodation, typically on trains, which is less comfortable than other classes, and might have wooden seating.

(electronics, computing) A type of error which persists even after power-cycling the equipment; associated with permanent physical damage to the equipment's hardware (for instance, from a latch-up).

plural of hard error

Ambitious, go-getting.

plural of hard charger