1. Extremely strong or concentrated or durable
   "industrial-strength detergent"
   - weapons-grade

See also: strong

• infantile
• infantile amaurotic idiocy
• infantile autism
• infantile fixation
• infantile paralysis
• infantilism
• infantine
• infantry
• infantryman
• infarct
• infarction
• infatuate
• infatuated
• infatuation
• infeasibility
• infeasible
• infect
• infected
• infection
• infectious
• infectious agent
• infectious disease
• infectious hepatitis
• infectious mononucleosis
• infectious polyneuritis