at great length

at great length

For a long duration. When I came home after curfew, my mom interrogated me at great length. He spoke at great length about how he had been inspired by his trip.

See also: great, length

Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

*at great length

for a long period of time. (*Typically: explain ~; question someone ~; speak ~.) The lawyer questioned the witness at great length.

See also: great, length

McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.