pretentative

From pre- +‎ tentative: compare Latin praetentare to try beforehand.

pretentative (not comparable)

1. Fitted for trial beforehand; experimental.
   • c. 1620, Henry Wotton, a letter

     This is but an exploratory, and pretentative purpose between us

• “pretentative”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• preattentive