put it mildly

Understate, say without exaggeration, as in It's a fairly long way to walk, to put it mildly-twenty miles or so. [First half of 1900s]

Name	Pronounced	Usage
FrÍ&Eth;A	-	Ancient Scandinavian, Icelandic
Jerrold	['dʒerəld]
Chesley	CHES-lee	English
Kyung-Hee	gyung-hee	Korean
Kudret	-	Turkish
Eric	ER-ik (English)	English, Swedish, German, Spanish