vapid
Cross references:
1. insipid
va.pid \'vap-*d, 'va--p*d\ \'vap-*d-le-, 'va--p*d-\ aj [L vapidus flat
tasting; akin to L vappa vapid wine and prob. to L]vapor steam : lacking
liveliness, tang, briskness, or force : FLAT, UNINTE RESTING {~ remark ~
smile} - va.pid.ly av
Webster's English Dictionary