ずに済む => get by without doing ~ N2
むしろ => rather; instead N2
Compare
に[難「むずか」]くない => It's not hard to A N1
Adjectival, Descriptions
~やむをえず  => unavoidable, no other way to do something N2
Necessity, obligation
より(も)むしろ => rather; instead; better ~ N3
~Vず して => without doing ~ N1
Evaluate
ずにすむ => Not doing A will suffice; Can get by without doing A N1
Need/Requirements
むき => facing towards N3
Direction
ぐらいならむしろ => If...then it would be better... N2
Cause, reason
いずれにしろ => anyhow; anyway; either ... N2
Confirm
...はむりだ... => impossible N4
Description
込む => to be crowded N3