horrendous russian

• а́довый

  hellish, infernal

  awful, terrible, dreadful, horrendous

• а́ццкий

  hellish, infernal, awful, terrible, horrendous, godawful (slang), insane (slang)

Examples

• Э́то бы́ло устраша́юще.It was horrendous.
• Э́то был ужа́сный о́пыт.It was a horrendous experience.