unscalable
Impossible to ascend
Unscalable describes something that cannot be scaled—in the older sense, a wall or cliff too sheer to climb: The fortress was protected by unscalable cliffs.
In contemporary business and technology contexts, it more often means unable to grow or expand efficiently: The startup's model was ultimately unscalable.
An unscalable process breaks down as volume increases.
Impossible to overcome
- impenetrableImpossible to pass through
- impregnableImpossible to capture
- unassailableImpossible to attack successfully
- fortressHeavily defended military structure
wall · rampart · bulwark · fortification · barricade · citadel · stronghold · battlement
Impossible to overcome
- HerculeanRequiring superhuman strength
- SisypheanEndlessly, pointlessly laborious
- dauntingDiscouraging through difficulty
- formidableInspiring fear or respect
arduous · overwhelming · insuperable · unconquerable · unattainable · unachievable · impossible · infeasible
Vertical rock wall
- precipiceSteep rock face
- rockfaceExposed cliff surface
- escarpmentSteep slope dividing elevations
- sheerAbsolute; also diaphanous
vertical · overhang · craggy · summit · peak · pinnacle · ledge · mountainous
Finite problem-solving procedure
- complexityState of being complicated
- intractableImpossible to manage
- undecidableLacking possible proof
- haltingMarked by hesitation
Turing · irreducible · unsolvable · recursion · exponential · bottleneck · throughput · infrastructure
insurmountable
Impossible to overcome
- impenetrableImpossible to pass through
- impregnableImpossible to capture
- unassailableImpossible to attack successfully
fortress · wall · rampart · bulwark · fortification · barricade · citadel · stronghold · battlement · moat
insurmountable
Impossible to overcome
- HerculeanRequiring superhuman strength
- SisypheanEndlessly, pointlessly laborious
- dauntingDiscouraging through difficulty
formidable · arduous · overwhelming · insuperable · unconquerable · unattainable · unachievable · impossible · infeasible · hopeless
cliff
Vertical rock wall
- precipiceSteep rock face
- rockfaceExposed cliff surface
- escarpmentSteep slope dividing elevations
sheer · vertical · overhang · craggy · summit · peak · pinnacle · ledge · mountainous · steepness
algorithm
Finite problem-solving procedure
- complexityState of being complicated
- intractableImpossible to manage
- undecidableLacking possible proof
halting · Turing · irreducible · unsolvable · recursion · exponential · bottleneck · throughput · infrastructure · architecture
unscalableclimbable
Able to be ascended
scalable · ascendable · accessible · traversable · negotiable
unscalablesurmountable
Capable of being overcome
conquerable · achievable · attainable · manageable · beatable