not take (something) lightly

To regard something with a great amount of seriousness or gravity. I hope you aren't taking these allegations lightly—they could mean a life in prison! I can promise you that I won't take this job interview lightly.

Common Names:

Name	Pronounced	Usage
Temperance	TEM-prənts, TEM-pər-ənts	English (Archaic)
Annelies	ah-ne-LEES (German), ahn-nə-LEES (Dutch)	German, Dutch
William	WIL-ee-əm, WIL-yəm	English
Gunnr	-	Norse Mythology
Severus	-	Ancient Roman
Gail	[geil]