Synonyms and related words :
OK, ace-high, bad, bang-up, bonzer, boss, bully, but good, cool, corking, crackerjack, dandy, delicious, ducky, fine and dandy, gear, great, groovy, heavy, hot, hunky-dory, jam-up, just dandy, keen, marvy, mean, neat, nifty, nobby, okay, out of sight, peachy, peachy-keen, ripping, rum, scrumptious, slap-up, smashing, solid, something else, spiffing, spiffy, stunning, swell, tough, wizard