Stand-in Black Caps captain Kane Williamson admits his team haven't shown much to date, but says he still believes they have the ability to down an in-form West Indies outfit.

The Windies cantered to a nine-wicket win at Sabina Park in Kingston, Jamaica, on Friday in the first of five one-day internationals.

Coming off two heavy Twenty20 losses in Florida last week, the New Zealanders could take little that was positive from the loss.

Sent into bat, they struggled to reach 190-9 with only BJ Watling's 60 and Jacob Oram's 32 off 39 balls shining in a lacklustre innings.

In response, Chris Gayle hit his third consecutive half-century in belting an unbeaten 63 off 57 balls as the West Indies cruised to 136-1 off 24.2 overs to win the rain-interrupted match under the Duckworth-Lewis method.

With skipper Ross Taylor invalided out for at least another two games with a shoulder injury, Williamson has taken over the leadership of a largely inexperienced New Zealand team.

He says the last three losses have been frustrating.

"It is a setback and it is disappointing," Williamson said.

"But we know we're underdogs and hopefully this breathes a fearless attitude into our camp.

"We learnt some lessons today, and hopefully we can put those into practice."

The Windies field a well-balanced side, and display plenty of strength with both bat and ball. The Black Caps, short of match play over the last four months, have a lot of ground to make up, Williamson said.

"It has been one-sided, but we do believe we have the personnel ... we're young but we've got the potential to play very good cricket.

"It's a shame we've yet to see it, but we can beat anyone on our day."

The second ODI begins early on Sunday morning (NZT) at Sabina Park.

NZ Newswire