FAST Synonyms

quick rapid dissolute tight swift libertine fasting loyal speedy firm debauched flying profligate dissipated strong tighter sudden subito steadfast subitaneous steadfastly sturdily steady soon stuck swifter unmovable unchaste turreted turbulently turbo trippingly toughish timely tightly tenacious tenable taut tantivy swiftness swiftly velocity staunch starve rushing rushed riotous resistant resilient refractory