Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Single-breasted \Sin"gle-breast`ed\, a. Lapping over the breast only far enough to permit of buttoning, and having buttons on one edge only; as, a single-breasted coast.
Wiktionary
a. (context of a jacket or coat English) Closing with a single row of buttons that form a narrow overlap.
WordNet
adj. (of clothing) closing with a narrow overlap and fastened with a single row of buttons; "a single-breasted jacket" [ant: double-breasted]
Wikipedia
In clothing, single-breasted refers to a coat, jacket or similar garment having one column of buttons and a narrow overlap of fabric. In contrast, a double-breasted coat has a wider overlap and two parallel rows of buttons. Single-breasted suit jackets and blazers typically have two or three buttons (jackets with one or four buttons exist, but are not common), and a notch lapel. However, from the 1930s onwards, peaked lapels, often on a single button jacket, have been variably in fashion. The width of the lapels is one of the most changeable aspects of the jacket, and narrow peak lapels on single-breasted jackets became popular during the 2000s.
Usage examples of "single-breasted".
While Sergei had gone for the Michelin man look, I was very much the businessman: single-breasted suit, jacket one size up, dark-gray overcoat, black woolen scarf and thin leather gloves, and the stress to match.
He was as informal as he ever became, having replaced his double-breasted suit coat with a single-breasted one of a slightly lighter shade and with suede patches at the elbows.
She surveyed the European-styled single-breasted jacket of dove gray whose slightly pinched waist emphasized Austin's shoulders like a military uniform.
He looked carefully round the room to see if anything had been forgotten and slipped his single-breasted dinner-jacket coat over his heavy silk evening shirt.
Conservative and immaculate, Priest had attended every meeting with his slick, shiny hair smoothly in place, his person exuding a pine-scented cologne, and his body always garmented in one of his costly single-breasted suits.
He was dressed in a tan poplin suit with single-breasted jacket and pleated pants.
The Social Democrat, who had set too much store by his single-breasted suit, died that night.
While Anton was still working on Korneff's double-breasted and my single-breasted suit, a trafficker in shoes came to see us about a tombstone for his wife, who had been killed in an air raid in '43.
He wore an old-fashioned single-breasted suit and pointed black shoes.
Every clear day he set off on foot, not in his car, striding optimistically along in his single-breasted suit, beanpole in shape because the coat and trousers were so unnaturally and senselessly tight.
Wearing his usual rig--dark-blue single-breasted suit, white shirt, thin black knitted silk tie, black casuals-- but they all look brand-new.
Wearing his usual rigdark-blue single-breasted suit, white shirt, thin black knitted silk tie, black casuals but they all look brand-new.
I had dressed that morning in my second-best town clothes: a navy chalk-stripe single-breasted suit made by my tailors in Savile Row, club tie, cream Gieves and Hawkes shirt, silver cufflinks from Aspreys, Church's black Oxford lace ups, silk socks, cashmere navy-blue overcoat, on my wrist my father's old Smiths watch.
Pudgy and pale in a dark Sears single-breasted suit, Gant could have been a bartender at a funeral.
He was wearing a very dark blue lightweight single-breasted suit over a cream silk shirt and a black knitted silk tie.