Synonyms For "Long" :
1 syllable:
far, lank, stretch, tall, yearn
2 syllables:
agelong, chronic, daylong, endless, hanker, lasting, lengthened, lengthy, lifelong, longish, monthlong, nightlong, oblong, prolonged, weeklong, yearlong
3 syllables:
durable, elongate, eternal, extended, farseeing, farsighted, foresighted, foresightful, hourlong, longsighted, longstanding, overnight, prospicient, protracted, retentive, tenacious
4 syllables:
bimestrial, continuing, elongated, extendable, extendible, perennial, recollective
5 syllables:
interminable, longitudinal, polysyllabic, semipermanent