hard

not easy; requiring great physical or mental effort to accomplish or comprehend or endure

“a difficult task”

“nesting places on the cliffs are difficult of access”

“difficult times”

“why is it so hard for you to keep a secret?”

dispassionate

“took a hard look”

“a hard bargainer”

resisting weight or pressure

very strong or vigorous

“a hard left to the chin”

“a knockout punch”

“a severe blow”

characterized by effort to the point of exhaustion; especially physical effort

“worked their arduous way up the mining valley”

“a grueling campaign”

“hard labor”

“heavy work”

produced without vibration of the vocal cords

“unvoiced consonants such as ‘p’ and ‘k’ and ‘s’”

with effort or force or vigor

“the team played hard”

“worked hard all day”

“pressed hard on the lever”

“hit the ball hard”

with firmness

“held hard to the railing”

earnestly or intently

“thought hard about it”

“stared hard at the accused”

causing great damage or hardship

“industries hit hard by the depression”

“she was severely affected by the bank's failure”

slowly and with difficulty

“prejudices die hard”

“he was so dizzy he could hardly stand up straight”

indulging excessively

“he drank heavily”