(of a disease or physical condition) continuing for a long time

incessant, never-ending

having much extent in space (length); to want, wish for, a person, thing very much

extended in space or time

continuing throughout the whole year; lasting for a very long time; living for more than two years

enduring, perpetual

taking a long time

long

(of a storm etc) (continuing) without a decrease in strength

continuous, never-ending

of uphold

supported