Traits:
Yin
Passive
Feminie
Static
Cold
Damp
Water
Earth
Bottom
Left
End
Short
Night
Moon
Down
Female
Intangilbe
Solid
Conceptualize
Contract
Pull
Defensive
Soft
Inhale
Death
Sad
Short
Thin
Close
Weak

For it's opposites checkout the masculinity page

For more information on this and other topics check out this site

Principles of Yin and Yang:
http://members.tripod.com/internalart/the%20art%20of%20healing/principle_of_yin_and_yang.htm