gayest

adjective

1. 1

   (possibly obsolete) Happy, joyful, and lively.

   “The Gay Science”

2. 2

   Quick, fast.

3. 3

   (possibly obsolete) Festive, bright, or colourful.

   “Pennsylvania Dutch include the plain folk and the gay folk.”

4. 4

   Sexually promiscuous (of any gender), (sometimes particularly) engaged in prostitution.

5. 5

   Homosexual:

6. 6

   A pejorative:

7. 7

   (of a dog's tail) Upright or curved over the back.

8. 8

   (possibly obsolete) Considerable, great, large in number, size, or degree.