大変

Adjective

 * 1) difficult, hard
 * 2) terrible
 * 3) serious, grave
 * 1) serious, grave
 * 1) serious, grave

Usage notes

 * The sense of "difficult" is commonly used in conversation to empathize with someone else's troubles.

Adverb

 * 1) very, greatly

Noun

 * 1) disaster
 * 2) difficulty
 * 3) dreadfulness