Glossary
Undercut

Definition
Haircut Styles
An undercut is a haircut with a deliberately short area beneath or beside longer hair, usually with a clear change between the two lengths.
Explanation
The defining feature is disconnection: the longer section is not fully blended into the short section. The close-cut area can cover the sides and back, one side, or only the nape, and it may be visible or hidden when the hair is worn down. An undercut can also include a fade within its short section, so the terms are not mutually exclusive.
Undercut, fade, and taper
An undercut describes the relationship between a much shorter section and longer hair above it. A fade describes a gradual blend from very short hair into longer hair. A taper usually concentrates a subtler shortening around the neckline and sideburns. A barber can combine a disconnected top with faded sides.
Reference photos should show the front, sides, and back because the same name can describe very different placements. Point out whether the short section should be hidden, how high it may sit, and whether the transition should be sharp or softened.
Choosing the placement
A nape undercut removes hair only at the lower back of the head and can stay hidden under longer hair. A side undercut creates an asymmetrical exposed area. A full undercut removes more weight from both sides or around the back. Hair density, curl shrinkage, growth patterns, and the way the hair is normally tied up affect the result.
Removing a large section can reduce bulk, but it also reduces the hair available for ponytails, braids, and future styles. Fine or low-density hair may reveal the short area more readily than a dense top section.
Maintenance and growing it out
A close undercut loses its sharp outline as soon as the short section grows. Maintenance timing depends on how exposed and precise the design is. Ask whether a simple perimeter cleanup will be enough or whether the longer top also needs reshaping.
Growing out an undercut takes planning because the short section must pass through several uneven lengths before it can rejoin the rest. A stylist can soften the disconnect, adjust the surrounding layers, or choose styles that hold the shorter section while it grows.

Frequently asked questions
Can an undercut be hidden?
Yes. A nape or low undercut can sit beneath longer hair and appear only when the hair is lifted or tied up. Whether it stays covered depends on density, placement, and how the hair naturally falls.