Should the word "irresolute" be used to describe people only or it can be used for other things as well. For instance, can an outcome be irresolute?
Although it doesn't include a broadened (transferred) usage in its definition, which demands a volitional referent, Cambridge English Dictionary includes an example sentence utilising such a usage:
irresolute [adjective]: not able or willing to take decisions or actions
- an irresolute reply
The missing required definition is 'showing/involving a lack of resolve'.
There is a possible confusion with 'unresolved', not satisfactorily concluded, obviously referring to situations.
A thing can be ambiguous, contradictory or equivocal. The word 'irresolute' is common when describing people or their behaviours.
Here are some example sentences for 'irresolute':
'She has always been irresolute when it comes to making decisions like this.' 'Her irresoluteness could give rise to serious consequences.'
However, If you think you are right, then look it up and find more synonyms for it and perhaps try to look for some sublime example sentences from the internet that are possibly written by experts and you'll get an understanding of the nuance of the words about which you have concerns.
I hope this is helpful.😀