Synonyms for Awful

Synonyms starting with letter I

• impressive

  awe-inspiring
• ill

  unwell, unfortunate
• inferior

  very bad
• intolerable

  frightful
• inadequate

  very bad
• imposing
• immensely
• intense
• insufferable
• iniquitous
• incredibly
• icky

  gruesome
• infamous
• intensely
• infernal
• inflamed
• intimidating
• incredible
• inexpressible
• ineffable
• inhuman
• injurious
• imperfect
• incompetent
• ill-fated
• ill-starred
• inauspicious
• irksome
• irritating
• invidious
• ignominious
• ill-favored
• irritated
• inconceivable
• incomprehensible
• immodest
• indefinable
• indescribable
• immoral
• insupportable