Underpower

Part of speech: verb, noun

Definitions

1. To supply or equip with less power than necessary for proper function
2. To operate or design something with inadequate power or force to meet its needs
3. To give a machine, device, or system a power level that is too low to perform effectively

Etymology: "Underpower" is a plain compound: the prefix "under-", meaning below or insufficient, attached to "power" in the sense of force or strength. The verb and noun both carry the same sense, that something has less force or capability than it needs. The pattern is a productive English one, in which "under-" combines with a noun or verb to mean "too little of" or "not enough," as in "undercook" or "underfund." The word's usefulness lies in its sharp, practical sense. Engineers, sound designers, and motorsport commentators reach for it when a machine or system is built with less capacity than the job demands, whether a car engine, an amplifier, or a small generator. The compound is transparent enough that its meaning can be read straight from its two parts.

Synonyms: underperform, underenergize

Antonyms: overpower, overperform