The answer is RIOTOUS, seven letters. At ten squares it is UPROARIOUS. Hilarious is a high intensity word, and the useful thing about that is it rules out the mild synonyms, so a short slot here is more likely to want a phrase than a plain adjective.
Intensity has to match, not just meaning
Funny words sit on a scale and a good setter respects it. Amusing, droll and wry are at the low end and describe a smile. Funny and comical are in the middle. Hilarious, uproarious and side splitting are at the top and describe a room losing control. A clue reading Hilarious is asking for the top of that scale, which is why DROLL is a trap rather than an answer even though it fits five squares neatly and means funny.
The same reasoning works in reverse and will save you time. If a clue reads Mildly amusing or Wryly funny, then RIOTOUS fails however neatly it lands in the squares, and you should go looking for DROLL or WRY instead.
Laugh words by letter count
Match the blanks before you weigh the shades of meaning:
| Letters | Answer | Notes |
|---|---|---|
| 5 | FUNNY | Only if the clue is mild in tone |
| 5 | ARIOT | The phrase a riot, run together |
| 5 | AHOOT | The phrase a hoot, run together |
| 7 | RIOTOUS | The plain default at this length |
| 7 | COMICAL | Slightly lower intensity |
| 8 | ASCREAM | The phrase a scream, run together |
| 9 | PRICELESS | Informal, usually of a remark |
| 10 | UPROARIOUS | The clue emphasizes volume or crowds |
| 13 | SIDESPLITTING | Long across entries and themed grids |
The short answers are usually phrases
Nothing on this page will save you more time than that. English has very few short adjectives that mean hilarious, but it has several short phrases, and American grids enter multiword answers as unbroken letter strings. A RIOT becomes ARIOT, A HOOT becomes AHOOT, A SCREAM becomes ASCREAM.
That is why a five letter slot with a leading A can look impossible. You are reading the letters as one word and no such word exists. When crossings hand you a first letter A on a clue like this, try splitting after it before you decide the crossings are wrong. Once you have seen the pattern once you will spot it instantly, and it recurs across many clue types, not just this one.
Where the riot sense came from
Riot originally described public disorder and still does in its main use. The comic sense is a figurative extension, from the idea of laughter breaking out and running past anyone’s control, and it survives in both the adjective riotous and the noun phrase about something being a riot. Uproarious works the same way, from uproar, and so does the older sense of a room in an uproar meaning a room in chaos rather than a room laughing.
That shared pattern is why the two words feel so similar. Both take a word for disorder and apply it to the physical loss of composure that hard laughter produces.
Checking the part of speech before you commit
Hilarious is an adjective, so the answer is an adjective or an adjectival phrase. That rules out HILARITY, LAUGHTER and MIRTH, which are nouns and which solvers reach for under time pressure because they are the first funny words that come to mind. It also rules out verbs. If the clue had wanted a noun it would have read Hilarity or Great amusement instead.
The one exception is the phrase group above, because a riot and a hoot are noun phrases doing an adjective’s job in a sentence like the show was a riot. Constructors accept that because ordinary speech accepts it, and it is the reason those entries are legitimate rather than sloppy.
Tense and number do not apply to adjectives, which removes one of the checks solvers normally lean on. What replaces it is the ending. Adjective fills at this length very often finish in OUS, so if a crossing has already handed you an S in the last square on a clue like this, testing that pattern first is the quickest route in.
Frequently asked questions
What is the seven letter answer for Hilarious?
RIOTOUS is the standard seven letter fill. COMICAL also fits seven squares but sits lower on the intensity scale, so a crossing letter should decide.
Why does my Hilarious answer start with A and look like nonsense?
Because it is a phrase entered without spaces. ARIOT is a riot, AHOOT is a hoot and ASCREAM is a scream, all standard multiword entries in American grids.
Is DROLL a good answer for Hilarious?
No. Droll means dryly or oddly amusing and describes a smile rather than helpless laughter, so it fails the intensity match even though it fits five squares.
