We found 3 dictionaries that define the word at full speed:

General (2 matching dictionaries)

1. at full speed: Merriam-Webster
2. at full speed: Rhymezone

Miscellaneous (1 matching dictionary)

3. at full speed: Idioms

Definitions from WordNet (at full speed) ▸ adverb:  without delay Opposite: slowly, leisurely, casually, unhurriedly Types: breakneck, blistering, rapid, speedy, swift, fleet, zippy, more... Phrases: running at full speed, more... ▸ Words similar to at full speed ▸ Usage examples for at full speed ▸ Idioms related to at full speed ▸ Wikipedia articles (New!) ▸ Words that often appear near at full speed ▸ Rhymes of at full speed ▸ Invented words related to at full speed