Capable of being held (in various senses of hold, v.); that may be kept, kept in, kept back, retained, restrained, or held in control. Now rare.
That may be retained (in various senses of the verb); capable of being retained.
Subcategories:
— for oneself or another (1)
— able to be withheld (1)
— not able to be transferred (10)
— not able to be imparted or shared (2)
— not able to be lost (1)
— not able to be forfeited (1)
— that cannot be taken away (1)