Brain wave and Unworkable

Brain wave noun - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph.

Unworkable and brain wave are semantically related. In some cases you can use "Unworkable" instead an adjective phrase "Brain wave".

Unworkable adjective - Not capable of being put to use or account.

Brain wave and unworkable are semantically related. Sometimes you can use "Brain wave" instead an adjective "Unworkable".