Musketeer/ˌmʌskəˈtɪr/ Definition 1 of 2Pro Tip 1/3Historical Usage Musketeer refers to a type of soldier from the past, not used in modern contexts. The painting depicted musketeers guarding the fortress. Pro Tip 2/3Obsolete Weaponry Muskets are outdated firearms; musketeers are often associated with the 16th to 18th centuries. Museums often display muskets used by musketeers Pro Tip 3/3Musketeer Imagery Musketeers are often portrayed with distinct uniforms and hats with plumes. At the renaissance fair, he dressed as a musketeer.