The phrase 'were conducive' refers to something that helps or contributes towards a particular outcome. Antonyms for this phrase would include words such as hindering, obstructive, unhelpful or detrimental. These words suggest that something is preventing or limiting progress, growth or success. For instance, if the resources provided were obstructive, then they would not have a positive impact on the outcome. Similarly, if the environment was unhelpful, it would not contribute towards the attainment of a particular goal. Overall, antonyms for 'were conducive' reflect factors that impede or hinder progress rather than facilitating it.