Antonyms of adj motor-assisted

1 sense of motor-assisted

Sense 1
motor-assisted -- (relying on an engine for propulsion in addition to muscle power; "a motor-assisted bicycle")

INDIRECT (VIA assisted) -> unassisted -- (lacking help)

Similarity of adj motor-assisted

1 sense of motor-assisted

Sense 1
motor-assisted -- (relying on an engine for propulsion in addition to muscle power; "a motor-assisted bicycle")
       => assisted (vs. unassisted), aided -- (having help; often used as a combining form)