K. Rajagopal's men fell to their sixth consecutive international friendly defeat, casting further doubt on their ability to put up a strong challenge in the Asian Cup qualifiers.
The Malayan Tigers, without an international win since they beat Yemen in in March, went up against Kuwait as preparation for their remaining three Asian Cup qualification matches, a campaign that has seen them notch one win, one draw and one loss.
In the match that took place in Al-Sadaqua Walsalam Stadium, Malaysia conceded as early as the sixth minute through an Al Rashidi Ahmad goal when left-back Mahali Jasuli and goalkeeper Khairul Fahmi failed to communicate and collided into each other.
Mahali's poor defending again contributed to Kuwait's second goal 10 minutes from half time when he failed to keep up with the winger's run down the right, who then sent in a cross that was put in the back of the net by Saif Al Hashan, who was not marked closely by centre-back Amiridzwan Taj.
Eight minutes after the second half resumed, Amiridzwan's poor marking gave Kuwait their third goal.
A through pass from the halfway line was received well by Khaled Ajab near the Malaysian penalty box, and he did well to leave Amiridzwan flat-footed before putting the ball past Fahmi to make it three for the home side.
Malaysia will next take on Bahrain away in the Asian Cup qualification next week.