No italics in vim

2017-09-06 12:06:56

I am using vimwiki on nvim 0.1.7 on Konsole 16.12.3 on Plasma 5.9.5 on Kubuntu 17.04.

Wiki text appears bold when it is between two stars. But when between two underscores, it does not appear in italic.

The same is the case even when I switch the format to markdown.

What is happening? How do I get to see the italic text?