How to use in-sentence of “weakly”:
+ Uranium is a silvery white, weakly radioactive metal.
+ The slightly curved claws are only weakly retractable.
+ To add more men, the only German cavalry division, the 1st “Kavalleriedivision” was told to capture the weakly defended provinces east of the river IJssel.
+ A specially constructed device can show the path and distribution of a weakly radioactive substance.
+ A few metals are weakly repelled.
+ Water adheres weakly to wax and strongly to itself, so water clusters into drops.
+ The Germans attacked a weakly defended section of the Allied line.
+ A second plan was for a “blitzkrieg” attack through the weakly defended Ardennes Mountains.

