Relatively long in duration; tediously protracted:
— A lengthy visit from her mother-in-law.

synonyms: drawn-out, extended, prolonged, protracted.

Roget 200: long, longsome^†; lengthy, wiredrawn^†, outstretched; lengthened etc. v.; sesquipedalian etc. (words) 577; interminable, no end of; macrocolous^†.    linear, lineal; longitudinal, oblong.    as long as my arm, as long as today and tomorrow; unshortened etc. (shorten) etc. 201^†.    ... show more

Roget 573: diffuse, profuse; wordy, verbose, largiloquent^†, copious, exuberant, pleonastic, lengthy; longsome^†, long-winded, longspun^†, long drawn out; spun out, protracted, prolix, prosing, maundering; circumlocutory, periphrastic, ambagious^†, roundabout; digressive; discursive, excursive; loose; rambling episodic; flatulent, frothy.    ... show more