reductio ad absurdum /ri-dukˈshi-ō ad ab-sûrˈdəm or re-dŭkˈti-ō ad ab-soorˈdŭm/

1. Reduction to absurdity
2. The proof of a proposition by proving the falsity of its contradictory
3. The application of a principle so strictly that it is carried to absurd lengths

• invades
• invading
• in vadio
• invaginate
• invaginated
• invaginates
• invaginating
• invagination
• invaginations
• in vain
• invalid
• invalidate
• invalidated
• invalidates
• invalidating
• invalidation
• invalidations
• invalided
• invalidhood
• invalidhoods
• invaliding
• invalidings
• invalidism
• invalidisms
• invalidities