also: ただしつき
noun which may take the genitive case particle 'no'
conditional; with conditions; provisional
Used as a no-adjective to describe something that comes with conditions, stipulations, or provisos. Often appears in legal, contractual, or formal contexts.
この契約は但し付きの承認が必要です。
This contract requires conditional approval.
彼の承諾は但し付きだった。
His consent was conditional.
条件付き is a more common and general term for 'conditional' or 'with conditions'. 但し付き is more formal and often implies a specific proviso or caveat, similar to 'with the proviso that...'.
Compound of 但し (tadashi, 'however; provided that') + 付き (tsuki, 'attached; with'). Literally 'with a proviso attached'.