9 letters · 16 points in Scrabble
originFrom refuse + -nik (suffix denoting a nickname for a person who endorses, exemplifies, or is associated with something, often a particular ideology or preference), a calque of Russian отка́зник (otkáznik), from отка́з (otkáz, “denial, refusal, rejection, repudiation”) + -ник (-nik, suffix forming masculine nouns, usually denoting adherents, etc.).
Etymology from Wiktionary, CC BY-SA 3.0