creepingly

English

Etymology

From creeping +‎ -ly.

Adverb

creepingly (comparative more creepingly, superlative most creepingly)

1. By creeping, moving stealthily and slowly; insidiously; cunningly.
   • a. 1712, Robert South, sermon

     How slily and creepingly did he address himself to our first parents.

References

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