°Of people:
steadfast, with unwavering feeling. (Now only in set phrases like "fast friend".).
interjection
°Short for "stand fast", a warning not to pass between the arrow and the target.
synonyms:
fasting, quick, rapid, speedy
more»
, swift, ahead, easy, slut, firm, immobile, secure, stable, stuck, tight, colour-fast, deep, sound, quickly, rapidly, speedily, swiftly, firmly, securely, tightly, deeply, ahead, express