Related by context. Frequent words. (Click for all words.) 41 economical 34 requirements 31 constraints 31 economically viable 30 exigencies 30 economically feasible 29 environmentally sustainable 29 imperatives 28 commercially viable 28 environmentally sound 28 environmentally responsible 28 environmental friendliness 27 considerations 27 timeframes 27 budgetary constraints 27 parameters 27 timelines 27 uneconomical 26 prerequisites 26 sustainable 26 adverse impacts 26 realities 26 conditions 25 difficulties 25 obligations 25 pressures 25 stipulations 25 impediments 24 affordably priced 24 practicalities 24 practical 24 infrastructural 24 hardships 23 environmentally 23 conditionality 23 hardship 23 without compromising 23 fleets 23 timescales 22 logistical 22 norms 22 hindrances 22 flexible scalable 22 ecologically friendly 22 roadblocks 22 financially viable 22 contractual obligations 22 disincentives 22 affordably 22 sensitivities 22 impacts 22 scaleable 22 economically 22 competitively priced 21 practicality 21 feasible 21 demand 21 bureaucratic hurdles 21 liquidity crunch 21 demands 21 commitments 20 efficiency 20 challenges 20 embargoes 20 financially feasible 20 environmentally friendly 20 dilemmas 20 contexts 20 tradeoffs 20 budgetary 20 flexibilities 20 non tariff barriers 20 scalable 20 frameworks 20 downward pressure 20 inconveniences 19 attractively 19 eligibility requirements 19 optimum 19 technically feasible 19 deadlines 19 overheads 19 burdens 19 transportable 19 predicaments 19 programmatic 19 covenants 19 achievable 19 inherent limitations 19 constraint 19 logistically 19 crisis 19 terms 19 boundaries 19 inflationary pressures 19 disadvantages 19 technicalities 18 compulsions 18 complexities 18 schedules 18 uncertainties