the quality of being difficult; "they agreed about the difficulty of the climb"
a factor causing trouble in achieving a positive result or tending to produce a negative result; "serious difficulties were encountered in obtaining a pure reagent"
a condition or state of affairs almost beyond one's ability to deal with and requiring great effort to bear or overcome; "grappling with financial difficulties"
characterized by care and perseverance in carrying out tasks; "a diligent detective investigates all clues"; "a diligent search of the files"
quietly and steadily persevering especially in detail or exactness; "a diligent (or patient) worker"; "with persevering (or patient) industry she revived the failing business"
prevent the progress or free movement of; "He was hampered in his efforts by the bad weather"; "the imperialist nation wanted to strangle the free trade between the two small countries"
dried out; "hard dry rolls left over from the day before"
unfortunate or hard to bear; "had hard luck"; "a tough break"
resisting weight or pressure
dispassionate; "took a hard look"; "a hard bargainer";
(of speech sounds); produced with the back of the tongue raised toward or touching the velum; "Russian distinguished between hard consonants and palatalized or soft consonants"
(of light) transmitted directly from a pointed light source
being distilled rather than fermented; having a high alcoholic content; "hard liquor"
very strong or vigorous; "strong winds"; "a hard left to the chin"; "a knockout punch"; "a severe blow"
with effort or force or vigor; "the team played hard"; "worked hard all day"; "pressed hard on the lever"; "hit the ball hard"; "slammed the door hard"
to the full extent possible; all the way; "hard alee"; "the ship went hard astern"; "swung the wheel hard left"
slowly and with difficulty; "prejudices die hard"
causing great damage or hardship; "industries hit hard by the depression"; "she was severely affected by the bank's failure"
with firmness; "held hard to the railing"
earnestly or intently; "thought hard about it"; "stared hard at the accused"
with pain or distress or bitterness; "he took the rejection very hard"
very near or close in space or time; "it stands hard by the railroad tracks"; "they were hard on his heels"; "a strike followed hard upon the plant's opening"
into a solid condition; "concrete that sets hard within a few hours"
a conceptual whole made up of complicated and related parts; "the complex of shopping malls, houses, and roads created a new town"
(psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
a compound described in terms of the central atom to which other atoms are bound or coordinated
complicated in structure; consisting of interconnected parts; "a complex set of variations based on a simple folk melody"; "a complex mass of diverse laws and customs"