dubitably

comparative more dubitably · superlative most dubitably

1. doubtfully

   Even though a claim to know may be asserted dubitably and still be counted as a scientific claim, the imagined end of the enterprise of science remains (at least in its still predominant self-understanding) certain knowledge.

   1989, Lawrence E. Hazelrigg, Social Science and the Challenge of Relativism, volume 2, page 123

   Antonyms: indubitably