costless

adj.

不须花钱的，无须付出代价的；

Are Perseverance and Self-Efficacy Costless? Assessing Entrepreneurs' Regretful Thinking
The effects of costless pre-play communication: Experimental evidence from games with Pareto-ranked equilibria
Sputtered nanodots: A costless method for inducing effective pinning centers in superconducting thin films
Emission rights: From costless activity to market operations
The use of costless inspection in enforcement
Costless and Costly Prosociality: Correspondence Among Personality Traits, Economic Preferences, and Real-World Prosociality (Forthc...
Costless metabolic secretions as drivers of interspecies interactions in microbial ecosystems
Transfer Pricing and Organizational Form
The Value of Financial Flexibility
Cheap Talk, Coordination, and Entry