Learn how to say Canniest correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word canny:
adjective (cannier, canniest)
1having or showing shrewdness and good judgement, especially in money or business matters:
canny investors will switch banks if they think they are getting a raw deal
2Northern English & Scottish pleasant; nice:
she’s a canny lass
late 16th century (originally Scots): from can1 (in the obsolete sense ‘know’) + -y1