don suruna
1. Don't be dull.; Don't become insensitive.
Verb
#232764
1. Don't be dull.; Don't become insensitive.
1. to become dim-witted; to lose one's edge
1. If it becomes dull; If it gets blunt
1. Did not become dull; Was not dull
1. May be dull.; It's okay if it's dull.
1. Was not dull.; Did not become dull.
1. Not necessary.; Don't have to be dull.
1. Please be gentle.; Please be careful.
1. Must not be dull; Should not be dull
1. May proceed despite slowness.; May proceed even if delayed.