A front side bead (28) is formed in a front protion of a vehicular hood (bonnet) (12) along a vehicle width direction by a hood inner panel (18) and a lock reinforcement (24). A rear-side attachment portion of the hood inner panel (18) to which is joined a flange serves as a swollen portion (18B) that swells downward with respect to the vehicle body. The flange (24D) of the lock reinforcement (24) has a vehicle body rear-side attachment portion (18B) and is largely separated from a hood outer panel in a vehicle body vertical direction (H3).