A convertible car having the top retracted or otherwise open.
"The driver enjoyed the sunny afternoon in his new topless sports car, feeling the wind rush through the cabin as he cruised down the highway."
"The topless section of the beach was much quieter than the area with umbrellas."
having the breasts uncovered or featuring such nudity
"topless waitresses"
"a topless cabaret"
Lacking a top.
"The new fashion trend featured models wearing elegant, completely topless gowns made of sheer fabric."
Not wearing any clothes on the upper body.
"The beach was crowded with sunbathers, including several topless women soaking up the rays."
In plain English: Topless means being without anything covering your upper body, typically referring to women at beaches or pools.
"The crowd cheered loudly when she walked topless down the runway."
Usage: Use this adverb to describe an action performed while not wearing clothing on the upper body, such as swimming topless at a beach. Avoid confusing it with "top-less," which is incorrect spelling for both the noun and adjective forms of the word.
Topless is formed by combining the word top with the suffix -less to mean without a top. This straightforward construction has remained consistent since its creation.