Why this word is great
GRUMBLETONIAN — [Noun] Originally a member of the 17th-century Country Party opposing royal prerogative; later, any chronic complainer or oppositionist. From grumble (expressing discontent) + -tonian (suffix forming nouns, as in Princetonian, Newtonian, etc.), analyzable as -ton + -ian. Unlike "malcontent" (which implies a deep, existential dissatisfaction) or "curmudgeon" (which connotes personal sourness), a grumbletonian is defined by the act of opposition itself—less a state of being than a habit of protest. It is the pamphleteer scribbling by candlelight, the backbencher muttering into his ale, or the neighbor who, rain or shine, will find fault with the weather—a figure as much ritual as rebel, whose complaints are the liturgy of an unquiet life.