seamless

UK: /ˈsiːmləs/ US: /ˈsimləs/ ,(sēm′lis)

WordReference Random House Learner's Dictionary of American English © 2025

seam•less /ˈsimləs/   adj. 

1. not having seams.
2. not having clear divisions into parts;
   smooth:
   a seamless move from one scene to another.
seam•less•ly, adv.: 
The plot moves seamlessly from one location to another.

WordReference Random House Unabridged Dictionary of American English © 2025

seam•less  (sēm′lis), adj. 

1. having no seams:
   seamless stockings.
2. smoothly continuous or uniform in quality;
   combined in an inconspicuous way:
   a seamless blend of art and entertainment.

• seam + -less 1475–85

seam′less•ly, adv. 
seam′less•ness, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

seamless / ˈsiːmlɪs/ adjective

1. (of a garment) having no seams
2. continuous or flowing: seamless output, a seamless performance