1. 
   listless
   [adj] - lacking zest or vivacity
   Found op http://www.webdictionary.co.uk/definition.php?query=listless
   
   
2. 
   Listless
   List'less adjective [ Middle English listles , lustles . See Lust .] Having no desire or inclination; indifferent; heedless; spiritless. ' A listless unconcern.' Thomson. « Benumbed with cold, and listless
   Found op http://www.encyclo.co.uk/webster/L/48
   
   
3. 
   listless
   adjective lacking zest or vivacity; `he was listless and bored`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=listless
   
   
4. 
   Listless
   • (a.) Having no desire or inclination; indifferent; heedless; spiritless.
   Found op http://thinkexist.com/dictionary/meaning/listless/
   
   
5. 
   listless
   lacking energy or spirit
   Found op http://www.eslgold.com/acad_vocab_definitions.html
   
   
6. 
   listless
   (programming) In functional programming, a property of a function which allows it to be combined with other functions in a way that eliminates intermediate data structures, especially lists. Phil Wadler's thesis gives the conditions for a function to be in listless form: each input list is traversed...
   Found op http://foldoc.org/listless
   
   
7. 
   listless
   1) Lacking zest 2) Lacking zest or vivacity 3) Languid 4) Lethargic 5) Unergetic
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/listless/1
   
   

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