lengthy

Of considerable length, especially in time; extended.

Tediously long; drawn-out.

Having length; long; especially, of great length; immoderately long, sometimes with the idea of tediousness attached: applied chiefly to discourses, writings, arguments, proceedings, etc.

Having length; rather long or too long; prolix; not brief; -- said chiefly of discourses, writings, and the like.

Long and overextended, especially in time rather than dimension.