primogenial (adjective) first: earliest in order
Sinonime: alienated,
apostate,
cheating, disaffected, double-crossing, estranged, faithless,
false,
perfidious, recreant, seditious, snaky,
subversive, traitorous,
treacherous, treasonable, two-faced, two-timing, unloyal, unpatriotic,
untrue,
untrustworthy, wormlike
Antonime: faithful,
loyal,
true,
trustworthy