More candidates for cutesie short forms of “rationalist”: rashie, ratie (RAY-TEE, or more likely RAY-DEE given typical English pronunciation habits), rasho, nalist, ratnist, tionlist (SHUN-list), Rashomon.
I’d also voting you up for “rationalati”, even though it’s not shorter. :-)
More candidates for cutesie short forms of “rationalist”: rashie, ratie (RAY-TEE, or more likely RAY-DEE given typical English pronunciation habits), rasho, nalist, ratnist, tionlist (SHUN-list), Rashomon.
I’d also voting you up for “rationalati”, even though it’s not shorter. :-)