Simple past tense and past participle of overextend.(verb)
Extended or expanded beyond a safe limit(adjective)
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Use "overextended" in a sentence
"Finally, while there has been much talk about the so-called overextended long position in the Canadian dollar, we must keep in mind that it is still well below the recent record."
"The B shares of airport operator Grupo Aeroportuario del Sureste, or Asur, fell 3.5% as UBS Investment Research Monday downgraded its recommendation to neutral from buy, citing an "overextended" valuation."
"But let me talk about the "overextended" piece, just a minute."