unremitting
adjective
[ ʌnrɪˈmɪtɪŋ ]
• never relaxing or slackening; incessant.
• "unremitting drizzle"
Similar:
relentless,
unrelenting,
continual,
constant,
continuous,
unabating,
unrelieved,
sustained,
incessant,
unceasing,
ceaseless,
steady,
unbroken,
non-stop,
endless,
unending,
persistent,
perpetual,
interminable,
unyielding,
inexorable,
unsparing,
without respite,
hard,
harsh,
stern,