δύσκαιρος

From LSJ

τὰ ὑπὸ ἐμοῦ διδόμενα τεθήσεται ἐν τῷ ἱερῷ → what I give will be put in the temple

Source

Spanish (DGE)

-ον inoportuno καιρός Aesop.Sent.39, Prou.108.