тяжко

Etymology
From.

Adverb

 * 1) sorely, gravely, heavily
 * 2) with difficulty

Predicative

 * 1) it is heavy
 * 2) it is hard

Etymology
From.

Adverb

 * 1) heavily
 * 2) gravely, grievously, severely, sorely
 * 3) with difficulty

Predicative

 * 1) (it is) hard, tough