Using standards set by Stanford economics professor John Taylor, Bullard insisted that the moves the Fed has made so far are insufficient.
"Thus far, the change in the monetary policy stance appears to have had only limited effects on observed inflation, but market pricing suggests disinflation is expected in 2023," he said.
"To attain a sufficiently restrictive level, the policy rate will need to be increased further," he added in the presentation.
The Fed has approved four consecutive 0.75 percentage point rate increases, and markets widely expect the December FOMC meeting to yield a 0.5 percentage point move.
Also, San Francisco Fed President Mary Daly told CNBC on Wednesday that she expects more rate increases and that a "pause is off the table" even with a lower level of rate increases.