Synonyms for Dangerous

Synonyms starting with letter I

• insecure

  hazardous, perilous
• injurious

  deleterious, harmful, adverse
• impending

  menacing, hazardous
• ill
• insidious
• important

  property
• inimical
• iffy
• intense
• impetuous
• intimidating
• insubstantial
• impregnable

  hazardous
• infectious
• inflammable
• incautious
• inclement
• incendiary
• infective
• infirm
• intrepid
• importunate
• iniquitous
• intimidatory
• in the balance
• in jeopardy
• in danger
• inhuman
• invasive
• ignoble
• ill-tempered
• infamous
• influential
• infuriated
• implacable
• intemperate
• insalubrious
• integral
• inflammatory
• inconstant