Straw man and Specious argument

Straw man noun - A weak or sham argument set up to be easily refuted.

Specious argument and straw man are semantically related. In some cases you can use "Specious argument" instead a noun phrase "Straw man".

Specious argument noun - An argument that appears good at first view but is really fallacious.

Straw man and specious argument are semantically related. Sometimes you can replace phrase "Straw man" with "Specious argument", this phrases are similar.