Liquid discharge head, liquid discharge apparatus, and bonded unit

A liquid discharge head comprising:

• a first component having a recess, recessed from a bonding face, at least in a bonding region;
• and
• a second component bonded to the bonding face in the bonding region of the first component,
• wherein the recess includes:
• a first recess to which an adhesive is applied, the first recess including:
• a first wall face;
• and
• a second wall face opposed to the first wall face;
• and
• a second recess extending in an extending direction to connect the first recess and an outer peripheral end of the first component, the second recess including:
• a third wall face connected to the first wall face at a first connection;
• and
• a fourth wall face opposed to the third wall face and connected to the second wall face at a second connection,
• wherein:
• at least one of the first connection or the second connection has a bending portion in which at least one of the third wall face or the fourth wall face is inclined with respect to the first wall face or the second wall face,
• the bending portion is disposed outside the bonding region of the first component,
• the bonding region includes an area where the first component and the second component are adhered to each other using the adhesive, and
• the bonding region excludes areas where the first component and the second component are not adhered to each other using the adhesive.