慎重を期す (しんちょうをきす) Japanese meaning | KotomoraMeanings
1
expression, godan verb (-su)
exercise great caution; be very careful; take the utmost care
A formal, set phrase used when one takes deliberate, thorough care in a matter. Often used in official or serious contexts.
See also: 期す (きす)
He was very careful with his remarks.