- NEATO
- Peachy-keen
- Cool!
- Super!
- Cool beans!
- Dandy!
- Cool bananas
- Western defense gp.
- Happy Days exclamation
- Quaint way to express amazement
- Nice!
- Older version of 62 Down
- Swell!
- Day-um!
- Hot damn!
- Like whoa
- Ni-i-i-ice
- That's cool!
- Marv
- Just ducky
- Just peachy
- Totes fab
- Old-fashioned "rad"
- Keen!
- Gee, cool!
- Groovy! precursor
- Phat in the 1950s
- Pretty keen!
- Peachy!
- Hey, wow!
- Exuberant shout
- Sick!, once
- Ooh, how fabulous!
- That's nice
- Fabulous
- Slangy word of enthusiasm
- Awesome
- Old-school cool
- Rad! predecessor
- Outta sight!
- Groovy!
- Rad!
- Super-duper
- Boss!
- Far out!
- Super keen
- Way cool!
- Wow!
- Phat! predecessor
- Sweet!
- Way cool, quaintly
- Gee, that's keen!
- Like, wow!
- Terrif!
- Ducky
- Old-fashioned "cool"
- Awesomesauce, once
- Great!
- 44-Across, updated
- Really cool!
- Marvy!
- That's so cool!
- Rad relative
- How cool!
- That's awesome!
- That's really spiffy!
- Radical cousin
- Cool kin
- Fab!
- I like it
- How nifty!
- Super cool
- Awesome relative
- How groovy
- Nifty!
- Old-style "Sweet!"
- Crackerjack!
- Excellent!
- Phat!, once
- Slangy approval
- Remark of approval
- That's super!
- Oh, cool!
- That's swell!
- Word of approval
- Retro "Cool!"
- Retro "Awesome!"
- Grand old word?
- Old-fashioned "Awesome!"
- Robotics company with a "swell" name
- Old-style "Awesome!"
- Old-style "Way cool!"
- Retro "Sweet!"
- Retro "Way cool!"
- Corking!
- Jim-dandy
- How keen!
- Wonderful
- Phat, old-style
- Uncool "Cool!"
- Spiffy!
- Terrific!
- That's peachy-keen!
- '50s "Nifty!"
- '50s "Radical!"
- Great, teenage style
- Copacetic
- Nifty, in the 50's
- Totally cool!
- Pretty amazing!
- I'm impressed!
- Fantabulous!
- Old-fashioned "Sweet!"
- So cool!
- Sweet, once
- That's amazing!
- That's really cool!
- Goody!
- Sweet!, old-style
- Cool, quaintly
- Quaint cousin of "Suh-weet!"
- Coo-oo-ool!
- Pretty slick!
- Suh-weet!, quaintly
- Suh-weet!
- Sweet!, quaintly
- Dope!
- Well, zippity-doo-dah to that
- Radical, man!
- Quaint "Cool!"
- Cooool!
- Phat!
- Old-fashioned "Super!"
- Nifty, to The Beave
- That's rad!
- Totally rad!
- Gee, that's swell!
- Cool, in the '50s
- Kin of "Swell!"
- Cool! old-style
- Cool, once
- Gee!
- Gee whiz, that's cool!
- Cool: sl.
- Old slangy word of enthusiasm
- Fantabulous! in the '50s
- Pretty rad
- Peachy keen relative
- Awesome, in the '50s
- Sounds swell!
- Robotic vacuum cleaner brand
- Fantastic in the '50s
