1. fussy about food; hard to please when eating
Usage: common in informal contexts
2. requiring great attention to detail; hard to handle or manage
Usage: often used of tasks or equipment

Examples

• My little sister is finnicky about vegetables and will only eat carrots.
• The old printer is finnicky and often jams.
• He's finnicky about how his coffee is prepared.
• This finnicky machine requires careful maintenance.
• Some cats are finnicky eaters and reject certain brands of food.
• The software can be finnicky on older computers.