loon

Synonyms for loon

noun crackpot

noun. stupid or ridiculous person

noun. person who is crazy, mad

noun. person who is considered mentally ill

noun. nut

noun. person who is crazy, overenthusiastic

large diving bird (especially the Great Northern Diver), 1630s, from a Scandinavian source (cf. Norwegian lom, from Old Norse lomr).

As if one loon—I mean as if one Chapter member in the family wasn't enough.

Then he threw off his main-hatch and "haw-hawed" like a loon.

Gin I could have come up in time, the loon had never risen from the ground.'

Knowing what she knew of her brother, Loon Dyke could never again be her home.

But a loon flapped up from the rushes, brushing the priest's face with its wings.

He's crazier than a loon in most of his hunches, but he's filled four of our biggest gaps.

There the loon took the boy on its back and dived with him to the bottom.

"Take a long, long breath and hold it while we go down," said the loon.

Well, he was hallooing like a loon, and we waited till he came up.

These too are fantastically decorated with feathers, usually of the loon.