expression, i-adjective
unperturbed; undaunted; retaining composure
Describes a person who remains calm and unfazed in the face of surprise, intimidation, or pressure.
彼は脅されてもびくともしなかった。
He remained unperturbed even when threatened.
expression, i-adjective
unyielding; not giving an inch
Often used for physical objects or structures that do not budge or give way under force, or metaphorically for a firm stance.
この机は重くて、押してもびくともしない。
This desk is so heavy that it doesn't budge even when pushed.