ceaselessly is a form of:

Ceaseless



adjective
1.
(not ceasing, going on continually, unceasing) ដែលឥតឈប់ឈរ, ដែលមិនចេះចប់, ដែលមិនឈប់, ដែលគ្មានការឈប់
ENGLISH MEANING
adjective
1.
Without pause or end; incessant.
adverb
1.
Without intermission or end.