uncertain Antonyms

certain undoubted transpicuous translucently total tenacious tangible sustainable sure strong-minded strong strict steady tried true true-hearted undoubtable undaunted uncontestable unconditional uncompromising unbending unavoidable unadulterated tuff trysting trusty trustworthy steadfast staunch seaworthy sealed sanguine safe rigid resolved resolute reliable purposive purposeful pure proven secure self-confident stationary stated stable specified specific sodding