down-the-line

[doun-thuh-lahyn]

adjective

complete, full, unreserved, or whole-hearted: a down-the-line endorsement.

adverb

fully; completely; whole-heartedly: Will you support it down-the-line?

Origin of down-the-line

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019