He was not seen in public for a week. When he reappeared, he looked frailer.

整整一周他都没有向公众露面；而后重新露面时，样子更显虚弱。

youdao

Also likely to be remarked on is that Steve looks thinner, and if possible, frailer, than ever.

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But who will provide adequate long-term care to this population as it grows older, frailer and more dependent remains an open question.

FORBES: Montevideo: Unprepared

These developments are bound to make the organisation's frail cohesion ever frailer.

ECONOMIST: The United Nations