guardedly (adverb)

1. The superhero cautiously approached the villain, guardedly sizing up the situation before making a move.

2. The astronaut explored the alien planet guardedly, aware of the potential dangers lurking in the unknown terrain.

3. The protagonist cautiously entered the haunted house, guardedly expecting the unexpected as she searched for clues.

4. The detective slowly and reservedly interrogated the suspect, guardedly trying to uncover the truth without revealing too much.