i Register
In some senses, semblant is marked as obsolete. Watch for register when choosing this word.
noun
One's outward appearance.
But vnder simple shew and semblant plaine / Lurckt false Duessa secretly vnseene […]
adj
Like; resembling.
their eyes survey The semblant shade
Seeming, rather than real; apparent.
[C]ommands ... that there be a just real union [of Scotland and England] as of brother and brother, not a false and merely semblant one as of slave and master.