West Indies captain Jason Holder felt his team played "horrible" shots during their six-wicket loss to Australia.
Opener Johnson Charles (22) top-scored for the hosts as they were bowled out for 116 in the tri-series clash in Guyana on Sunday.
Holder, who was bowled for one, was unhappy with his team's batting and said poor shots were costly.
"There were quite a few soft dismissals," he told a news conference.
"They challenged us and built pressure well. I don't think they got us out with any spectacular balls.
"We just played some horrible shots at crucial stages of the game which cost us wickets."
Australia reached their target with 146 balls remaining as David Warner led the way with an unbeaten 55.
Holder said his team simply gave their bowlers too much work to do, with Sunil Narine (2-36) again the standout.
"We obviously didn't bat well. We didn't put enough runs on the board," he said.
"We never really got any partnerships going and just not enough runs on the board, the bowlers didn't have anything to bowl at, although we tried very, very hard.
"We ended up getting four Australian wickets. I thought Sunil Narine came in and did an excellent job for us in the end and we got some wickets up front."