ache/ affliction/ compassion/ dole/ dolour/ dreg/ hurt/ languor/ pain/ pathos/ sediment/ sorrow/ teen/ vexation
compassionate/ doleful/ painful/ passionate/ piteous/ pitiful/ tragic
breach/ crack/ flaw/ gap/ hiatus/ interstice/ opening/ seam/ split
adjust/ correct/ meliorate/ mend/ rectify/ repair/ restore
accuracy/ amendment/ appropriateness/ betterment/ correction/ exactitude/ fitness/ integrality/ mend/ probity/ reparation/ soundness/ uprightness/ validation
ascertainment/ detection/ discovery/ enquiry/ exploration/ inquiry/ invention/ quest
abandonment/ abdication/ abnegate/ relinquishment/ renunciation/ retraction/ revulsion/ withdrawal