IPA: /ˈæntɪkli/
KK: /æn'tɪkli/
In a strange or unusual way that may seem funny or silly.
The clown danced anticly, making everyone laugh.
Anticly is derived from "antic" (from Italian "antico", meaning ancient or old) and the suffix "-ly" (meaning in a manner of). The word "anticly" means in a manner that is old-fashioned or reminiscent of ancient times.
Think of the word 'antic' which relates to something 'ancient' or 'old', and remember that 'anticly' describes doing something in an old-fashioned way.