hilarious

Meanings

1. 1
   adj

   marked by or causing boisterous merriment or convulsive laughter

   hilarious broad comedy

2. 2
   adj

   Very funny; causing great merriment and laughter.

   a hilarious joke

3. 3
   adj

   Full of hilarity; merry.

   Cold Doctor Pell here refused a very considerable fee. He could on occasion behave handsomely; but I can't learn that blustering, hilarious Doctor Rogerson ever refused his.

Etymology

Learned borrowing from Latin hilaris (“cheerful”) + -ious, from Ancient Greek ἱλαρός (hilarós, “cheerful, merry”).