lacking in flavor; dull; tasteless
I never eat in the company cafeteria: I find the food there insipid.
in (not)#sapere (to have a taste, have good taste, be wise) (Latin)
in+sip+id (it) in-'not, -ve prefix', so when you do not sip it, i. e a juice, then it means the juice lacks flavor. in+ sipid (spell it as spit. ), we spit when the FOOD LACKS FLAVOR: or it is TASTELESS. if u take a SIP IN, and realize that u were stuPID enough to taste such a flavor, then the drink is insipid