Emma felt that her own note had deserved something better; but it was impossible to quarrel with words, whose tremulous inequality shewed indisposition so plainly, and she thought only of how she might best counteract this unwillingness to be seen or assisted.
There are no more uses of "tremulous" in the book.
Show samples from other sources
She spoke timidly in a tremulous voice.
She tried to sound confident, but her voice was tremulous.