Tamim then handed the ball to part-time spinner Najmul Hossain Shanto, who broke the 79-run partnership by getting Tector caught by Liton Das after scoring 45 off 48 balls.
Mustafiz struck three times in quick succession, removing Curtis Kaempfer (one), George Dockrell (three) and Tucker, in a batting collapse the Irish side did not see coming.
Adair took 14 runs in the last over from Mrityunjay Choudhary, leaving Hasan Mahmood 10 runs to defend in the final over.
Hasan kept his cool and bowled Adair with a slower ball on the very first ball, dashing Ireland’s hopes.
He then had Andy McBrine (four) caught third ball and conceded just five runs in the over as the Tigers fought hard to win.