No, this is not the phrase that means you don't like risk. That would be risk averse.
Risk adverse suggests you're somehow anti-risk in the same sense as anti-matter is adverse to matter...
Adverse is roughly defined as `contrary to your interests or welfare; "adverse circumstances"; "made a place for themselves under the most untoward conditions"` or `in an opposing direction; "adverse currents"; "a contrary wind"`
Averse is roughly defined as `antipathetic: (usually followed by `to') strongly opposed; "antipathetic to new ideas"; "averse to taking risks"; "loath to go on such short notice"; "clearly indisposed to grant their request"`
It is perhaps worth noting that when you search for `define: averse` on Google, related phrases include `risk averse`, `risk-averse investor,` and `risk averse management`, none of which come up for `adverse`.