(ながび)

ながびく
verb, godan
to be prolonged; to drag on
1. to be prolonged; to drag on; to last longer than expected
For something, typically an undesirable situation, to continue longer than expected or hoped. Commonly used for illnesses, meetings, negotiations, and other processes.
会議(かいぎ)長引(ながび)いた。
The meeting dragged on.
風邪(かぜ)長引(ながび)いて、なかなか(なお)らない。
My cold is dragging on and won't go away.
交渉(こうしょう)予想以上(よそういじょう)長引(ながび)き、契約(けいやく)来月(らいげつ)()()しになった。
Negotiations dragged on longer than expected, and the contract was carried over to next month.

長引(ながび)く is an intransitive godan verb. It carries a negative nuance — the prolongation is usually unwanted.

ASPECT (ている):
長引(ながび)いている indicates that something is currently in a prolonged state.

COMMON COLLOCATIONS:

  • 会議(かいぎ)長引(ながび)く (a meeting drags on)
  • 病気(びょうき)長引(ながび)く (an illness is prolonged)
  • 工事(こうじ)長引(ながび)く (construction drags on)
  • 裁判(さいばん)長引(ながび)く (a trial drags on)
  • 梅雨(つゆ)長引(ながび)く (the rainy season lingers)

NUANCE:
長引(ながび)く almost always implies something undesirable continuing. It would not be used for pleasant experiences lasting longer.