- adjective strong, able to survive in difficult circumstances
- adjective used to describe a system which can resume working after a fault
- Built and/or assembled in a manner which provides for reliable operation even under harsh conditions.
- software which as few or no bugs, and which performs well under most any conditions.
Origin & History of “robust”
By a series of semantic twists, robust is related to red. It comes ultimately from Indo-European *reudh- ‘red’ (source of English red). this produced Latin rōbus, which was applied to a particular sort of oak tree with reddish wood. The oak being synonymous with strength, rōbus in due course came to mean ‘strength’. This was carried over into the derived rōbustus ‘firm, strong, solid’, from which English gets robust, and also into the verb rōborāre ‘strengthen’, source of English corroborate (16th c.).