yearslong
Lasting multiple years
Yearslong describes something that extends or has extended over multiple years: a yearslong investigation, yearslong negotiations.
The word functions as a compound adjective, typically appearing before nouns.
Like similar formations (monthslong, weekslong), it emphasizes duration without specifying exact length.
Of excessive duration
- extendedLengthened in time or space
- protractedExtended beyond normal duration
- prolongedMade to last longer
- sustainedKept up continuously
drawn-out · marathon · ongoing · continual · uninterrupted · continuous · persistent · lasting
Formal examination of facts
- negotiationDiscussion seeking mutual accord
- litigationLegal dispute process
- campaignOrganized effort toward goal
- struggleLabored effort against resistance
battle · dispute · project · endeavor · effort · undertaking · development · construction
State of poor health
- conditionState or stipulation
- afflictionCause of ongoing distress
- sufferingSustained experience of distress
- treatmentCare for an ailment
therapy · battle · struggle · ordeal · remission · relapse · management · rehabilitation
Wholehearted loyalty to purpose
- devotionDeep, loyal commitment
- perseveranceSustained resolve despite obstacles
- steadfastnessFirm loyal dedication
- persistenceContinuing despite difficulty
tenacity · loyalty · relationship · friendship · partnership · marriage · career · training
lengthy
Of excessive duration
- extendedLengthened in time or space
- protractedExtended beyond normal duration
- prolongedMade to last longer
sustained · drawn-out · marathon · ongoing · continual · uninterrupted · continuous · persistent · lasting · enduring
investigation
Formal examination of facts
- negotiationDiscussion seeking mutual accord
- litigationLegal dispute process
- campaignOrganized effort toward goal
struggle · battle · dispute · project · endeavor · effort · undertaking · development · construction · restoration
illness
State of poor health
- conditionState or stipulation
- afflictionCause of ongoing distress
- sufferingSustained experience of distress
treatment · therapy · battle · struggle · ordeal · remission · relapse · management · rehabilitation · recovery
dedication
Wholehearted loyalty to purpose
- devotionDeep, loyal commitment
- perseveranceSustained resolve despite obstacles
- steadfastnessFirm loyal dedication
persistence · tenacity · loyalty · relationship · friendship · partnership · marriage · career · training · apprenticeship