在字体排印学中，粗衬线体是一种衬线字体，其衬线比一般来的粗黑。所以常被使用于报章杂志或是广告的标题，而非内文。

当印刷材料开始蓬勃发展时，印制广告、海报和传单等需要新的字体的辅助，文生·费金斯（Vincent Figgins）在1815年和1817年首次应用粗衬线体「Antique」在商业用途上。

In typography, a slab serif (also called mechanistic, square serif, antique or Egyptian) typeface is a type of serif typeface characterized by thick, block-like serifs. Serif terminals may be either blunt and angular (Rockwell), or rounded (Courier). Slab serifs were invented in and most popular during the nineteenth century.