squeamish
adjective
[ ˈskwiːmɪʃ ]
• easily made to feel sick or disgusted.
• "I've always been squeamish about bugs"
Similar:
easily nauseated,
nervous,
be put off by,
cannot stand the sight of,
… makes one feel sick,
Origin:
late Middle English: alteration of dialect squeamous, from Anglo-Norman French escoymos, of unknown origin.