convenient vs lumbersome

convenient

adj
  • Suspicious due to suiting someone's purposes very well. 

  • Serving to reduce a difficulty, or accessible with minimum difficulty; expedient. 

lumbersome

adj
  • Marked or characterised by lumbering or awkwardness; cumbrous 

How often have the words convenient and lumbersome occurred in a corpus of books? (source: Google Ngram Viewer )