IPA: /rɪˈflɛksli/
KK: /rɪˈflɛksli/
In a way that happens automatically or without conscious thought, often as a response to a stimulus.
She reflexly pulled her hand back when the hot pan touched her skin.
Reflexly → It is formed from "re-" (meaning again) and "flectere" (meaning to bend). The word "reflexly" means to bend back or respond automatically, as in a reflex action.
Think of something bending back ('re-' means again and 'flectere' means to bend) — that's how reflexly describes an automatic response.
No commonly confused words.