には[及「およ」]ばない => There is no need to A N1
Need/Requirements
及び => and; as well as ~ N2
~ひょうしに(~拍子に)   => the moment [A], unintentionally / inadvertently caused something to happen N1
…ば…はずだ => If ... then perhaps ... N3
Speculation
~ににあわず (に似合わず ) => ~Different from N1
Evaluate
には[及「およ」]ばない => There is no need to A, Doesn't reach the level/ability A; can't compete with A N1
Comparison/ Exchange
ずに => without doing ~ N3
~によらず      => regardless of ~ N1
…も...ずに => without doing something N4
Status, contrast
ずに => Without A..ing N4
Verb Suffixes
ずに => Without A..ing N3
Verb Suffixes
いずれにせよ => anyway N2
Situation