Antonyms of adj unassisted

2 senses of unassisted

Sense 1
single-handed, unassisted, unbacked -- (unsupported by other people)

INDIRECT (VIA unsupported) -> supported -- (sustained or maintained by aid (as distinct from physical support); "a club entirely supported by membership dues"; "well-supported allegations")

Sense 2
unassisted (vs. assisted) -- (lacking help)

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

Similarity of adj unassisted

2 senses of unassisted

Sense 1
single-handed, unassisted, unbacked -- (unsupported by other people)
       => unsupported (vs. supported) -- (not sustained or maintained by nonmaterial aid; "unsupported accusations")

Sense 2
unassisted (vs. assisted) -- (lacking help)
       => naked -- ((of the eye or ear e.g.) without the aid of an optical or acoustical device or instrument; "visible to the naked eye")
       => unaided -- (carried out without aid or assistance; "his first unaided walk through the park")