long
We were scant of breath after the lengthy climb.
Politicians often have conflicting ideas that can lead to a lengthy debate on matters.
It took me several months to finish that lengthy novel. When the pastor gives a lengthy sermon, many in the congregation fall asleep. Bring lots of paper and a reliable pen because this professor is known for his lengthy lectures.
The students fell asleep during the professor's lengthy,monotonous lecture.
Lengthy is an adjective I think lengthen is the verb
The abstract noun form of the adjective 'lengthy' is lengthiness, a word for a quality; a word for a concept.
For dad, a trip to the mall just before the holiday season is worse than a lengthy prison sentence. Having to enroll in summer school was nothing short of a prison sentence for him.
The critic launched into a lengthy diatribe about the latest film starring Taylor Lautner which no one wanted to hear.
Because Jacob did not participate in class too much, his correct and lengthy answer did astonish everyone.
That is a rather lengthy questionnaire.
A rhyming word pair for lengthy tune is long song
The judge's sentencing of the criminal was harsher than expected, resulting in a lengthy prison term.