"Ah yes, the Spee-ider. Even the smallest bite from arachnus deathicus will instantly paralys--"
"Nope, nope. Definitely normal."
But just in case, we should kill it and then burn the house down. Just in case.
If by normal you mean fearsome, life-threatening, and eerie, then yes that spider would certainly look normal.
Why not "definitely"? That is one of the suggested translations in the tool tip.
"That spider is definitely normal" is definitely accepted. I don't know about other word orders.
That is über cute! Even to an arachnofoob! Certe ne estas normala, estas adorable!
Yes, but that's part of the cuteness, the failed English. Similar to how you see it with the lolcats memes.
Nepre is definitely or absolutely and certe is certainly or certain when the sentence has no noun