sturdiest
Most solidly built
Sturdiest is the superlative of sturdy—the most solid, robust, or durably built among a group: the sturdiest chair in the room, the sturdiest of the three bridges.
It applies to physical objects, structures, or people who can withstand strain or hardship.
durable
Persisting over extended time
- hard-wearingResistant to damage
- toughestMost difficult or resilient
- heavy-dutyBuilt for hard use
- ruggedTough and uneven
reinforced · weatherproof · indestructible · armored · fortified · tempered · impervious · resistant
long-lasting
Persisting over extended time
- hard-wearingResistant to damage
- toughestMost difficult or resilient
- heavy-dutyBuilt for hard use
rugged · reinforced · weatherproof · indestructible · armored · fortified · tempered · impervious · resistant · unbreakable
mightiest
Most powerful of all
- brawniestMost physically powerful
- toughestMost difficult or resilient
- stoutestMost thickset or resolute
heartiest · burliest · huskiest · hardiest · stockiest · thickest
firmest
Most rigid, least yielding
steadiest
Superlatively constant and reliable