The word "lazaru" does not exist in the English language. However, assuming you meant "laziness," there are many synonyms that can be used to describe it. These include lethargy, idleness, indolence, slothfulness, and apathy. Other words that can be used to describe a lack of motivation or effort include inertness, listlessness, enervation, and torpor. To talk about someone who is habitually lazy, you might use words like shiftless, sluggish, or lackadaisical. To express frustration at someone who isn't putting in effort, you could use phrases like "dragging their feet," "taking it easy," or "slacking off".