Translation Ukrainian English: слабнути
Dictionary: mainслабнутидієслово1 abate, 
 die away, 
 let up, 
 relax, 
 slack, 
 slack off, 
 slack up, 
 slacken, 
 slake, 
 slow, 
 slow down, 
 slow up. 
 2 decompress, 
 loose, 
 loosen, 
 loosen up, 
 make relaxed, 
 relax, 
 slack, 
 slack up, 
 slacken, 
 slow down, 
 unbend, 
 unlax, 
 unstrain, 
 unwind.