sunkiai
1. heavily ; with difficulty; s. dūsauti sigh heavily; s. atsidusti heave a (deep) sigh; s. pakrautas heavily loaded; s. tariamas žodis a word (that is) hard to pronounce; s. suprantamas difficult to understand;2. (smarkiai) severely; (rimtai) seriously, gravely; (pavojingai) dangerously ; s. sirgti be seriously ill; s. sužeistas severely/seriously/dangerously wounded