continuing for a very long time
continuing or existing for an indefinite time
(of a disease or physical condition) continuing for a long time
incessant, never-ending
(of a person, behaviour, principles etc) having a regular pattern
constant, regular
happening very often or with only short breaks
constant, incessant
hard-working; showing care and effort
persevering, hard-working
likely to last for a long time
sturdy, long-lasting
without beginning or end; lasting for ever
without pause; endless
often happening
common, repeated
brave; ready to go on fighting; ready and willing; a form of play, sport, especially with rules, e.g. tennis, football, cards
brave, willing
an apparatus for grinding
hardworking
regular, usual; having a habit mentioned
usual, established
that stays in one's mind, thoughts
unforgettable
(of a person) making repeated and annoying requests
demanding, insistent
that cannot decay or be destroyed; a person who cannot be corrupted, especially by being bribed
honest, honorable
willing to work long and hard
hardworking
(only in) 'the livelong day/night' = all day/night
lasting
an animal that is the young of a horse and a donkey; a slipper without a heel
stubborn
not easily agreeing to an argument or being persuaded; stubborn
stubborn, determined
having, showing patience; a person who has received or is receiving medical treatment
capable, willing to endure
continuing throughout the whole year; lasting for a very long time; living for more than two years
enduring, perpetual
not expected to change; going on for a long time; intended to last
constant, lasting
going on for a long time or without stopping
continual, lasting
determined; stubborn
resolute
very determined
determined, strong-willed
(of a person) having a strong, determined will; difficult to deal
obstinate, unyielding
holding tightly; very determined to get or keep something, be successful in winning an argument etc
strong, unyielding
(of a storm etc) (continuing) without a decrease in strength
continuous, never-ending
going on, happening, all the time
incessant
never coming to an end
certain, unchanging
complete; absolute
absolute, pure
not becoming less in force, degree
merciless
not stopping
continual
never wanting to stop
determined, persevering
(of a person) determined to have one's own way; intentional
stubborn, obstinate