mer·e·tri·cious 
(mĕr′ĭ-trĭshəs)
(mĕr′ĭ-trĭshəs)adj.
1.
a. Attracting attention in a vulgar manner: meretricious ornamentation.
b. Plausible but false or insincere; specious: made a meretricious argument.
2. Of or relating to prostitutes or prostitution: meretricious relationships.
[Latin meretrīcius, of prostitutes, from meretrīx, meretrīc-, prostitute, from merēre, to earn money; see (s)mer-2 in the Appendix of Indo-European roots.]
mer′e·tricious·ly adv.