The phrase "a weak sweet" is correct and usable in written English.
It can be used to describe a flavor or taste that is not very strong or intense, particularly in reference to something sugary or dessert-like.
Example: "The dessert had a weak sweet flavor that left me wanting something more robust."
Alternatives: "a mild sweetness" or "a subtle sweetness".
Neoculin has a weak sweet taste of its own but also elicits intense sweetness shortly after tasting an acidic solution [14].
The variation in sweet perception may lead those born with a weak sweet perception to sprinkle more sugar on their strawberries to achieve the same level of sweetness as others.
WT neoculin elicited almost no sweet taste (score: 1.6±0.84, mean ±SD) at pH 8.0, a weak sweet taste (score: 3.1±1.2) at pH 7.5 and a strong sweet taste (score: 6.3±0.58) at pH 4.0 (Fig. 3).
WT neoculin activated hT1R2-hT1R3 in a pH-dependent manner at pH 7.1, eliciting a half-maximal response in the cell-based assay and it elicited a weak sweet taste at pH 7.5 in the human sensory test (Figs. 3, 4A, and 4C).
Nina, Alik's wife and the daughter of a once powerful K.G.B. agent, is a religious fanatic and a drunk; although her Christianity remains steadfastly Russian Orthodox, she now boozes the "American way," imbibing drinks that are "weak, sweet and ceaseless".
Brewers are often tempted to make even "premium" brands weaker, sweeter and blander in an attempt to appeal to as many palates as possible while also cutting the cost of production, and their tax bill.
By the mid-17th century, however, when La Varenne wrote "Le Cuisinier François," a weak "Maginot line" had been established between sweet and savory.
Ah, the fresh, sweet smell of rising dollar volume after a weak winter.
Industrialized production, like a sweet tooth, like an adulterer, prefers a weak will, a deadened conscience.
With stars including Paul O'Grady and, until recently, Richard and Judy, anchoring the afternoon sweet spot, Countdown - the first show broadcast on C4 - could have become a weak link.
