A writing utensil having a utensil body (10) and, placed therein, an exchangeable refill filled with an ink containing a solvent having a vapor pressure of 1 to 50 mm Hg (20 DEG ), characterized in that the refill has a pen point comprising a fiber core or a plastic core and the pen point is coated with a material capable of suppressing the vaporization of the solvent in an amount of 0.01 to 20 wt % relative to the pen point. It is preferred that the above material is also contained in the ink. The above materials include glycerol derivatives, polyoxyethylene sorbit fatty acid ester, an alkyl phosphate ester, waxes and lecithin.