Little Henry was in her thoughts, and a mixture of alarm and delicacy made her irresolute what else to say.
I would be understood to mean, that it can be only weak, irresolute characters, (whose happiness must be always at the mercy of chance,) who will suffer an unfortunate acquaintance to be an inconvenience, an oppression for ever.
There are no more uses of "irresolute" in the book.
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When I came to you last week and found you alone, I came determined to know the truth; though irresolute what to do when it WAS known.
Austen, Jane -- Sense and Sensibility
He was near the door now, barely two feet away from me where I stood at the threshold, irresolute, not knowing whether to forge on toward my room or to turn and flee.