It's a perfectly acceptable description for a number of situations.
[Her voice is dry in response. 'Fine' is exactly as noncommittal and dismissive as she needs it to be. Carla lets him motion her in without glancing over her shoulder, but she does look up at him when she sits back in one of the chairs, legs crossed at the knee. She would be hard-pressed to think up a better adjective besides. Her focus is on the prize, on whatever will help her settle into her wasted body. She had thought the heartbeat would be enough, the breath, but they're drowned out too often.]
too early;
[Her voice is dry in response. 'Fine' is exactly as noncommittal and dismissive as she needs it to be. Carla lets him motion her in without glancing over her shoulder, but she does look up at him when she sits back in one of the chairs, legs crossed at the knee. She would be hard-pressed to think up a better adjective besides. Her focus is on the prize, on whatever will help her settle into her wasted body. She had thought the heartbeat would be enough, the breath, but they're drowned out too often.]