Wiktionary
unforthcoming
a. Not forthcoming; laconic or uncooperative
Usage examples of "unforthcoming".
Leshtu and his family were polite but unforthcoming, and they showed no curiosity about their visitors, despite their claim to have come from another world and the evidence of their unusual powers.
He was being so vague, so unforthcoming, she would have guessed that the entire tribe was going to be sold into gold-mining slavery, except something in his tone said that he really cared about what happened to them.
He had been most unforthcoming about the nature of the call, but his hurried trip to the Crown Colony boded ill.