valueless
From LSJ
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
adj.
Worthless, cheap: P. and V. εὐτελής, φαῦλος.
Useless: P. and V. ἄχρηστος, ἄχρειος; see useless.
Worth nothing: P. οὐδένος ἄξιος.