The phrase "wast a quandary" means being uncertain or indecisive about something. Some of the antonyms for this phrase are assured, decisive, determined, unwavering, resolved, and confident. When someone is assured, they are not in a quandary because they have full confidence and conviction about their actions or decisions. Similarly, being decisive means making a firm and timely decision without hesitation. Determined and unwavering means someone has a strong desire and commitment to achieving their goals, and they don't let obstacles deter them. When someone is resolved, they have made a definitive decision, and they are not uncertain. Confidence is also essential in making decisions since it involves having faith in oneself and one's abilities.