conservative?

yesterday my colleague was telling me she showed the photos we took in langkawi to some other colleagues. then the rest were so shocked to see me wear bikini coz they said i'm always covered up in office. and she agreed with them saying i'm conservative in my dressing. the word "conservative" really bothers me! what does she mean by conservative?!! the first thing that comes to mind is do i dressed like a nun? angry!

i seriously do not dress like an "auntie" nor a geek or am the old fashioned kind. i think my dress sense is quite up to date and feel really offended when she says i dressed conservatively. does wearing low cut and showing cleavage shows that i'm not conservative in my dressing? i asked around and nobody has ever said i dressed conservatively. just cant get over this! feel angry whenever i think about it.