Minor cutting edge has various synonyms that can be used depending on the context. A few examples are razor-sharp, sharp as a tack, keen-edged, incisive, precise, subtle, fine, delicate, and nuanced. These words describe something that can cut or slice with ease and precision, but is not necessarily the largest or most powerful cutting tool available. The minor cutting edge can still be highly effective and useful in situations where a more delicate touch is required. Synonyms like these can help to enrich our understanding of language and can be employed to add depth and nuance to our writing and conversation.