dead slow

adverb

, Nautical.

1. as slow as possible without losing steerageway.

Example Sentences

Very slowly we crawl on, making hardly a ripple; we are going dead slow now, scarcely moving, in fact.

From Project Gutenberg

During this period, it is often necessary to steam dead slow, for it is impossible to see a boat's length ahead.

From Project Gutenberg

But, pard, it was dead slow, an' so I hired a man to run the works while I hit the old trail again.

From Project Gutenberg

There were some moments of hope, dashed by the necessity of going dead slow behind an interloping van.

From Project Gutenberg

From that time I went dead slow and began to bring the Southern Cross about.

From Project Gutenberg