The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)
Source: wiktionary
Subsonic
Synonyms for "subsonic" (7 found)
Ranked by relevance and common usage.
Closest matches (2)
Strong matches (2)
Adjective(2 words)
below sonic speedbelow sound speed
Related words (3)
Adjective(2 words)
low speedsubsonic velocity
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
More general
3 entriesaerodynamic propertyphysical propertyspeed descriptor
More specific
3 entriessubsonic flightsubsonic propulsionsubsonic regime
Collocations
6 entriessubsonic aircraftsubsonic flowsubsonic propulsionsubsonic regimesubsonic speedsubsonic wind tunnel
Inflections
2 entriesmore subsonicmost subsonic
Derivations
2 entriesAntonyms
2 entriesSample sentences
2 total sentences available.
But British Airways Flight 112 made the trek in under five hours, setting a new record for the fastest subsonic commercial flight across the Atlantic Ocean.
Source: wiktionary