1. At breakneck speed
   - headlong

See also: precipitate

• immunisation
• immunise
• immunised
• immunity
• immunization
• immunize
• immunized
• immunizing agent
• immunoassay
• immunochemical
• immunochemical assay
• immunochemistry
• immunocompetence
• immunocompetent
• immunocompromised
• immunodeficiency
• immunodeficient
• immunoelectrophoresis
• immunofluorescence
• immunogen
• immunogenic
• immunogenicity
• immunoglobulin
• immunoglobulin A
• immunoglobulin D