maximal (adj.)youdaoicibaDictYouDict
1872, from Latin maximus (see maximum (n.)) + -al (1). Related: Maximally.
maximalist (n.)youdaoicibaDictYouDict
"extreme radical in the Russian Socialist Revolutionary Party," early 20c., from maximal + -ist; denoting "one who insists on all his demands." Related: Maximalism.