Expressing disbelief can be done in a variety of ways, such as scoffing or gasping. The term 'express disbelief' can be represented by the crossword solutions 'SCOFF' (5 letters) and 'GASP' (4 letters). Scoffing is an expression of contempt or derision, often accompanied by a sound or gesture. Gasping is an expression of surprise or shock, usually accompanied by a sharp intake of breath. Both of these expressions are common reactions to something unexpected or shocking.