impius
impleo
im·pla·ca·bi·lis
unappeasable
Similar to implacabilis
immarcescibilis
–
unfading
imbellis
–
unwarlike
immortalis
–
immortal
inedicabilis
–
inexplicable, unexplainable
impenetrabiilis
–
impenetrable
stabilis
–
firm, stable, steadfast
flebilis
–
doleful, lamentable, tearful