strenuousness

adversity complication crisis deadlock dilemma frustration hardship hazard obstacle pain predicament snag struggle trouble

arduousness awkwardness barricade check crux distress emergency exigency fix hindrance hitch impasse knot labor laboriousness mess misfortune muddle obstruction painfulness paradox perplexity pickle quagmire quandary scrape stew strain strait tribulation

dead end deep water hot water stumbling block

advantage aid assistance blessing ease encouragement favor good health happiness help peace solution

benefit calm comfort health opening order organization pleasure promotion success

calmness contentment felicity harmony satisfaction tranquility

efficacy potency valor

adequacy arm authority capability capacity clout command competence control domination efficiency energy force forcefulness get-up-and-go jurisdiction lustiness mastery moxie muscle peppiness powerfulness prowess puissance punch qualification sinew steam strength sway vigor

forcibleness qualifiedness strong arm vigorousness

weakness

enervation helplessness idleness impotence inability inactivity inadequacy incompetence inefficiency ineptness lack lethargy powerlessness