slick
adj.adj. done in a very smooth, professional, and impressive way. It often describes someone who is good at persuading people, sometimes in a way that feels a bit dishonest.
adj. characterised by a smooth, efficient, and professional execution. Often carries a pejorative nuance suggesting a lack of depth or sincerity, particularly when describing persuasive speech or marketing.
The salesman gave a very slick presentation.
The company launched a slick advertising campaign that quickly went viral across all social media platforms.
While the film's production values were undeniably slick, critics argued that the glossy visuals could not compensate for a fundamentally hollow and derivative script.
From Middle English slicke, slike, slyke, from Old English slīc (“sleek, smooth; crafty, cunning, slick”), from Proto-Germanic slīkaz (“sleek, smooth”), from Proto-Indo-European sleyg-, *sleyǵ- (“to glide, smooth, spread”). Akin to Dutch sluik, dialectal Dutch sleek (“even, smooth”), Old Norse slíkr (“sleek, smooth”), Old English slician (“to make sleek, smooth, or glossy”).
Often used to modify nouns related to performance, such as 'presentation', 'operation', or 'marketing'.