incrementally

From incremental + -ly.

incrementally (comparative more incrementally, superlative most incrementally)

1. In an incremental fashion; by small changes.
   • 2004 July 27, F. Keith Barker et al., “Phylogeny and diversification of the largest avian radiation”, in PNAS, page 11040, column 2:

     The probability density of the Bayesian posterior was estimated by Metropolis-coupled Markov chain Monte Carlo, with multiple incrementally heated chains.

   • 2026 February 18, Will Rogers talks to Richard Wilcock, “The RAIL Interview”, in RAIL, number 1055, page 47:

     Performance is improving incrementally, depot by depot and diagram by diagram.

• See little by little
• gradually