Be aware 'unmanly' is based on traditional gender roles that can be outdated or offensive. He was teased for his 'unmanly' interest in ballet, which is an unfair stereotype.
Pro Tip 2/3
Cultural Sensitivity
Some cultures may find the term 'unmanly' disrespectful. Use with caution. Calling his tears 'unmanly' was frowned upon by others who value emotional expression.
Pro Tip 3/3
Subjective Judgment
'Unmanly' often reflects personal opinions; what seems unmanly to one may not to another. His friends saw his cooking hobby as 'unmanly', but he found it a sign of self-reliance.