Toughness

n.resilient, capableeveryday

What it means

Capacity to withstand hardship, strain, or damage.

Reach for it when naming resilience demonstrated under pressure rather than an absence of feeling

Her toughness carried her through rehabilitation without hiding the days she needed help.

playful
grit
when informal praise for perseverance under pressure fits
not when Grit can romanticize deprivation and imply that systems need not improve.
everyday
strength
when broad capacity is sufficient
not when Strength may never have been tested by hardship.
warm
hardiness
when survival under difficult physical conditions matters
not when Hardiness suits organisms and constitutions better than moral resolve.
professional
durability
when materials or objects resist wear
not when Durability is impersonal and awkward for emotional endurance.
professional
resilience
when recovery after a setback is central
not when Resilience emphasizes returning or adapting, while toughness can mean withstanding the initial strain.
professional
stamina
when sustained exertion is the main challenge
not when Stamina concerns duration, not resistance to impact or adversity.
formal
fortitude
when courage through pain deserves dignified praise
not when Fortitude is moral and emotional, not a material quality.
literary
ruggedness
when robust construction or outdoor endurance is central
not when Ruggedness can describe appearance and may sound gender-coded.

mental toughness
Mental toughness includes resetting after error, not denying disappointment.
show toughness
The young trees show toughness without being left unwatered.
toughness and flexibility
Toughness and flexibility let the material survive repeated bending.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.