Synonyms of 'halting'
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A faltering attempt, effort, or movement is uncertain because the person doing it is nervous or weak, or does not really know what to do.
He spoke in faltering English.
If you are hesitant about doing something, you do not do it quickly or immediately, usually because you are uncertain, embarrassed, or worried.
She was hesitant about coming forward with her story.
If something such as someone's writing or speech is laboured, they have put too much effort into it so it seems awkward and unnatural.
The prose of his official communications was so laboured, pompous and verbose.
Thesaurus for halting from the Collins English Thesaurus
If you speak or do something in a halting way, you speak or do it slowly and with a lot of hesitation, usually because you are uncertain about what to say or do next .