Antonyms of adj undatable

1 sense of undatable

Sense 1
undatable (vs. datable) -- (not capable of being given a date)

datable (vs. undatable), dateable -- (that can be given a date; "a concrete and datable happening"- C.W.Shumaker)

Similarity of adj undatable

1 sense of undatable

Sense 1
undatable (vs. datable) -- (not capable of being given a date)
       => dateless, undated -- (not bearing a date; "a dateless letter")
       => dateless -- (of such great duration as to preclude the possibility of being assigned a date; "dateless customs")