A connector with stationary housings, a movable housing, and terminals. The terminals have a movable-side retained portion including a contact portion secured in place by unitary molding in a movable-side retaining portion of the movable housing, a stationary-side retained portion secured in place by unitary molding at a location proximate the connecting portion of the terminals in a stationary-side retaining portion of the stationary housing, and a resiliently displaceable resilient portion coupling the movable-side retained portion to the stationary-side retained portion. The resilient portion has a curved apex portion constituting the upper end of the resilient portion outwardly of the movable-side retained portion in the connector-width direction, and lateral open spaces, which are open in the connector-width direction, are formed in a range including at least the apex portion below the above-mentioned movable-side retaining portion positioned above the apex portion.