There's not a word for it

There’s not a word for it

Writers are always trying to shake it up vocabulary-wise so we don’t annoy readers by overusing a particular word. I’ve no idea how many serious discussions I’ve heard involving the search for a synonym for nod.

So what words fall in this category of having no single-word synonym? It seems there’s some buzz in the ether over the subject, but not much. The only thing word-enthusiasts seem to have agreed on is the uncreative, yet clear & honest label for such words — asynonyms. 

Here is a collection of asynonymous words posited here and there:

Everyday nouns like:

peach

broccoli

spinach

badger

iguana

slug

nod (also a verb)

Some nearly everyday verbs:

obviate

skip (a series of small jumps moving from one foot to the other) 

Specific science- & math-related words like:

gastroenterologist

otolaryngologist

appendectomy

isosceles

parallel

Some scarcely-heard tongue-twisters:

sphygmomanometer (the only one-word English label for a blood-pressure monitor)

agelast (a person who never laughs)

petrichor (the sound of rain hitting the hard ground)

Given my interests, I would add to the list the word etymologist. Good readers, given your interests, what asynonymous words would you add to the list?

My thanks go out to this week’s sources: the 

Quora, Stack Exchange, Collins Dictionary, Oxford Dictionary, & Etymonline.