Pneumatic Tire

A pneumatic tire, comprising:

• four main grooves that extend in a tire circumferential direction on a tread portion;
• and
• five rows of land portions defined by the four main grooves, wherein
• among the four main grooves, the main grooves disposed on sides of a tire equator are inner main grooves, the main grooves disposed on an outer side in a tire width direction of the inner main grooves are outer main grooves,
• a land portion positioned between the inner main grooves is a central land portion, the land portions positioned between the inner main groove and the outer main grooves are intermediate land portions, and the land portions positioned on an outer side in the tire width direction of the outer main grooves are outer land portions,
• a plurality of compound grooves, each including a lateral groove having a first end that communicates with a first main groove and a second end that terminates inside a land portion, and further including a sipe that extends from the second end of the lateral groove to a second main groove, are formed at an interval in the tire circumferential direction in the central land portion or at least one of the intermediate land portions,
• the compound grooves are disposed so that an opening direction of the lateral grooves relative to the main grooves alternatingly reverses in the tire circumferential direction, and
• the lateral grooves each include a broad width portion that opens to a main groove and extends at a constant groove width, and a narrow width portion that is positioned between the broad width portion and the sipe and extends at a constant groove width narrower than that of the broad width portion.