The teenager will be available for Saturday's Ladbrokes Championship game away to Falkirk.
ICT boss John Robertson has also snapped up winger Darren McCauley from Coleraine on a deal until the summer of 2021.
Latest News
Friday 25th January 2019
McDonald joins ICT
Inverness Caley Thistle have signed midfielder Anthony McDonald on loan from Hearts until the end of the season.
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