an unlikely ... to 〜

「〜する可能性の低い...」

...には名詞を、〜には動詞の原形を入れて使います。

The New York Timesの記事、'Uncertainty Buffets Japan’s Whaling Fleet'から。

'AYUKAWAHAMA, Japan — This small harbor on Japan’s northern coast, where whaling boats sit docked with harpoon guns proudly displayed, and shops sell carvings made from the ivorylike teeth of sperm whales, might seem to be an unlikely place to find opponents of the nation’s contested Antarctic whaling.

Yet, local residents are breaking long-held taboos to speak out against the government-run Antarctic hunts, which they say invite international criticism that threatens the much more limited coastal hunts by people in this traditional whaling town'.