0 someone who has no special knowledge of a subject but who expresses an opinion about it: --
I avoid commenting on football for fear of being called an ultracrepidarian.
1 expressing an opinion about something that you have no special knowledge of: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.