1. having one’s appearance changed to conceal identity or look like someone or something else
2. hidden or concealed in a deceptive way

Examples

• The spy was disguised as a waiter.
• She came to the party disguised as a pirate.
• The police officer was disguised in plain clothes.
• His anger was disguised behind a polite smile.
• The bitter medicine was disguised with honey.
• The criticism was disguised as helpful advice.