brisk
The briskness of the brushstrokes suggests quick, unplotted movement in the painting.
Business was conducted with briskness and professionalism.
Their conversational tone alternated jocularity and briskness.

SMART Vocabulary: related words and phrases

Speed of motion
at full/half throttleidiom
burst of speed
celerity
clip
clock
cruising speed
ground speed
hypersonic
hypervelocity
instantaneous velocity
light speed
linear velocity
momentum
pace
speed of sound
speediness
supersonically
swiftness
throttle
velocity

You can also find related words, phrases, and synonyms in the topics:

Excitement, interest, energy and enthusiasm