Unaided

The strange object in the sky could be seen with the unaided eye.

Uranus is a large, plain, blue-green planet which can only be seen from the Earth with the unaided eye on a clear, dark night.

The chick would not survive unaided.

Fleas are difficult to see with the unaided eye.

So much for Norman blood unaided by Victorian lucre.

Superheating, first introduced with the "Abs", stopped further development in compounding, in New Zealand as elsewhere, and the "Abs" succeeded in dealing with the growing traffic unaided for more than a decade.