collarless

/ˈkɑlərləs/
adjective
  1. Having no collar, especially describing a shirt, jacket, or other garment.
    • The uniform had a collarless design for a modern look.
    • He wore a collarless shirt with a simple linen jacket.
    • Collarless coats were popular in the 1960s fashion.
Antonyms
What does "collarless" mean? | whatsthatwordmean | whatsthatwordmean