The most common and most likely answer to this crossword clue is the 3 letter word HEP which also is the latest solution we found used in LA Times in 2025.
"Cool," once crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| HEP | 68 % | 3 |
| RAD | 14 % | 3 |
| PHAT | 5 % | 4 |
| GROOVY | 5 % | 6 |
| NEATO | 5 % | 5 |
| BOSS | 5 % | 4 |
Why may HEP be the right solution?
The term "hep" was a slang word used in the 1930s and 1940s to mean "cool" or "hip." So, "Cool, once" is a clue hinting at a word that meant cool in the past, making "HEP" the correct answer.
Words with a meaning similar to the clue: "Cool," once
These words may or may not be a possible solution to this crosswords clue.- hep
- rad
- boss
- nifty
- groovy
- retro
- above
- bounce
- hand
- over
- passe
- rapper
Crossword Answer definitions
HEP noun- Hepatitis.
- Abbreviation of high-energy physics.
- A hip of a rose; a rosehip.
- (US slang) To make aware of.
- (US slang) Aware, up-to-date.
- (US slang) Cool, hip, sophisticated.
- (usually reduplicated) An instance of crying hep!, especially as a call to attack Jewish people.
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution
More clues leading to the result HEP
- In the groove
- On the ball
- Wise
- Groovy
- With it
- Bad word before A, B, or C, briefly
- Like cool cats
- Kind of cat
- Knowing what's up
- With it, once
More clues leading to the result RAD
- Cool, in the '90s
- Energy unit
- Extremist
- "Awesome!"
- Cool
- Marvelous, slangily
- One-half a diam.
- Cool, these days
- Physicist's unit
- Totally awesome
More clues leading to the result PHAT
- Neologistic acronym in recent movie script
- "Dope"
- 1980s hip-hop adjective
- Rapper's rave
- "The cat's meow," now
- Good, in the 'hood
- "Cool," to those who think they're cool using rap slang
- Cool, back in the '80s
- Great, in early '90s slang
- 1990s "cool"
More clues leading to the result GROOVY
- "Fab!"
- Cool, once
- Old-fashioned "Cool!"
- Old-style "Cool!"
- '60s "Super!"
- Old-fashioned "Neat!"
- In top form: Slang.
- "Delightful" in hippie jargon
- "Cool!"
- Cool, in the 1960s
More clues leading to the result NEATO
- Peachy-keen
- "Cool!"
- "Super!"
- "Cool beans!"
- "Happy Days" exclamation
- "Swell!"
- Older version of 62 Down
- "Day-um!"
- "Hot damn!"
- "Like whoa"