bitter

Strong’s Dictionary of Greek Words:

Number:
4089 (find all occurrences in KJV Bible)
Greek:
πικρός
Transliteration:
pikros
Phonic:
pik-ros’
Meaning:
perhaps from 4078 (through the idea of piercing); sharp (pungent), i.e. acrid (literally or figuratively)
KJV Usage:
bitter