From Ralph Hancock
“Insectoid” won’t really do as the standard adjective for insects, because it
means “having the form of an insect” and could equally apply to a six-legged
walking machine, for example.
If I had to make up a word, I would go for “insectal”, which isn’t in the
dictionary either.
But there’s no difficulty in continuing to use the word as its own adjective.
There is no adjective for “plant” either, and no one complains about having to
use this as an adjective (“plant life”).
London
