"not illustrative" is a correct and usable phrase in written English.
It means that something does not serve as an example or provide explanation. It can be used in situations where something is not helpful or does not shed light on a topic. Example: "The diagram provided was not illustrative of the concept, leaving the students confused."
That is why the dissent's "analogy," post, at 20 21, is not illustrative at all.
Index performance is provided as a benchmark but is not illustrative of any particular investment.
He pointed to the mass killing in Seal Beach, where eight murders in one day would show up in crime statistics as an anomaly not illustrative of the town's overall safety.
The hotel maintains that they have "a long history of respecting our associates' rights and caring about their well-being and this unacceptable behavior is certainly is not illustrative of that history".
Theatre isn't illustrative.
But, he says, "the music isn't illustrative in the conventional way, but it mirrors the complex way people speak.
Twombly used myth not as illustrative but allusive.
People often don't understand this, but nature, in 18th-century and 19th-century German music, is not an illustrative quality.
Both Trollope and Darwin work in the mock-epic mode: the acts of very small and humble and comic creatures, archdeacons and earthworms, are shown to be not just illustrative of heroic and cosmic workings but an aspect of them.
His selection of the word list and his well-phrased definitions made his work superior to previous works, although he did not give illustrative quotations but merely cited the names of authors.
Marko Daniel and Matthew Gale, curators at the Tate Modern in London who organized the exhibition in collaboration with Teresa Montaner, a curator at the Fundació Joan Miró in Barcelona, contend that at certain crucial times in his life Miró did express passionately held political concerns, albeit in coded and not obviously illustrative ways.
