lengthy
adjective
[ ˈlɛŋ(k)θi ]
• (especially in reference to time) of considerable or unusual length, especially so as to be tedious.
• "lengthy delays"
Similar:
long,
very long,
of considerable length,
long-lasting,
prolonged,
extended,
extensive,
protracted,
overlong,
long-drawn-out,
diffuse,
discursive,
verbose,
wordy,
garrulous,
prolix,
long-winded,
ponderous,
digressive,
rambling,
dragged out,
tedious,
boring,
interminable,
wearisome,