IPA: /ˈsiːm.ləs.li/
KK: /ˈsimləsli/
In a smooth and continuous way without any interruptions or gaps.
The new software integrates seamlessly with the existing system.
Seamlessly → It is formed from "seam" (from Old English "sēam", meaning a line of stitching) and the suffix "-lessly" (meaning without). The word "seamlessly" means without any visible seams or interruptions, indicating a smooth and continuous transition.
Think of a line of stitching ('seam') that is so smooth and continuous that it has no visible breaks ('-lessly'). This helps you remember that 'seamlessly' means something that flows without interruption.