The phrase "a hint of weakness" is correct and usable in written English.
It can be used to describe a subtle or slight indication of vulnerability or frailty in a person, situation, or argument.
Example: "Despite his confident demeanor, there was a hint of weakness in his voice when he spoke about his past struggles."
Alternatives: "a trace of vulnerability" or "a touch of frailty."
Higgins was desperate to hide even a hint of weakness.
Google is already offering word processing and spreadsheets as free online services, and this week announced it would soon add presentation software as well, to rival Microsoft's PowerPoint.Yet Google's latest deals contain a hint of weakness.
Hong Kong has been under Beijing's sovereignty for long enough now that even modest concessions could send signals across the border that mass protests bring results — a hint of weakness that Mr. Xi, a leader who exudes imperturbable self-assurance, seems determined to avoid, mainland analysts say.
Confronted with popular outrage at the beheadings of James Foley and Steven Sotloff, and political opponents keen to exploit any hint of weakness or indecision, the realist has relented.
She pounced on her second serve -- Taylor won only 2 of 19 second-serve points -- and attacked the net consistently at any hint of weakness.
This man notices many things, including any eccentricity of dress, any hint of weakness in his opponent, and he's cagey about offering signs of friendliness — an anecdote, a bit of personal advice — that would make Frost falter.
Though all are new-home builders, they react immediately to any hint of weakness across the housing market.
Like many women, I determined at an early age to be nothing but strong and fierce, blowing away any hint of weakness with my achievement.
A hint of the relative weakness of these papers is found in the fact that China ranks just 14th in average citations per SCI paper, suggesting that many Chinese papers are rarely quoted by other scholars.The quality of research is not always an issue for those evaluating promotions and grants.
