Definition of "underpowered" []

• Simple past tense and past participle of underpower. (verb)
• Having insufficient power for its operation (adjective)

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• "But even that older altarpiece was itself rather underpowered from the few photos I have seen of it."
• "Detroit's other auto maker, Chrysler, now owned privately by Cerberus Capital Management L.P., got a lower rating this year due to what Consumer Reports called underpowered engines, sub-par interior materials and noise."
• "The category of netbooks, often called underpowered, got a performance boost as Intel announced that a dozen new netbooks based on its mobile dual-core Atom processors are shipping."