grounding - training, knowledge⏎
furnish - supply, provide, make ready⏎
headway - gain, progress, increase, rise, improvement⏎
lead - control, ahead, guide, advantage, direct⏎
mandatory - must-do, required by law, obligatory, compulsory, unavoidable, necessary⏎
mature - experienced, well-developed, well-established⏎
faulty - imperfect, incorrect, inexact⏎
futile - useless, absurd, pointless⏎
marketeer - seller, salesperson⏎
invalid - incorrect, unwarranted, officially or legally unacceptable⏎