Clue: Cool, once

We have 3 answers for the crossword clue Cool, once.

Possible Answers:

• RAD
• NIFTY
• HEP

Related Clues:

• Flirt's signals
• Au courant
• Unit related to the roentgen
• Trendy
• With it, once
• Cool, updated
• "Way cool!"
• X-ray unit
• "Gnarly!"
• Commotion
• Like some "cats"
• Old-school "cool"
• "Out of sight!"
• Tuned in, daddy-o
• Wonderful, in slang
• Really neat
• Excellent
• "Far out!" to a physicist?
• SECOND oldest man (Gen. 5:20)
• Groovy cousin
• X-ray dose
• ___ to (wise about)
• Great, in '80s slang
• Swell
• With it
• ... and 63 more.

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