WordReference Random House Unabridged Dictionary of American English © 2026
fa•nat•i•cize
(fə nat′ə sīz′),USA pronunciation v., -cized, -ciz•ing.
v.t.
v.i.
v.t.
- to make fanatical.
v.i.
- to act with or show fanaticism.
- fanatic + -ize 1705–15