Here are several alternatives to the word "hard," depending on the context in which you intend to use it:
- Difficult - when referring to a challenging task.
- Challenging - for situations that require effort or skill.
- Sturdy - when describing something physically strong or durable.
- Firm - for a solid texture or quality.
- Tough - suggesting resilience or strength.
- Arduous - for tasks that are labor-intensive or exhausting.
- Rigid - when discussing something inflexible or strict.
If you have a specific context in mind, I can provide a more tailored suggestion!