Pronunciation: (sō'pē),[key] —adj.,soap•i•er, soap•i•est. 1. containing or impregnated with soap: soapy water. 2. covered with soap or lather: soapy dishes. 3. of the nature of soap; resembling soap: a soft, soapy fiber. 4. pertaining to or characteristic of soap: a clean, soapy smell. 5. Informal.characteristic or reminiscent of a soap opera; melodramatic; corny: a soapy plot.