Final answer:
The opposite of flojo is ajustado, which means 'tight' or 'fitting'.
Step-by-step explanation:
Flojo is a Spanish word that means 'lazy' or 'loose'. The opposite of flojo is ajustado which means 'tight' or 'fitting'. For example, you could say 'El pantalón está muy ajustado' which means 'The pants are very tight'.
Learn more about Opposites in Spanish vocabulary