IPA: /ˈmoʊ.mənˌtɛr.i/
KK: /ˈmoʊməntɛri/
Lasting for a very short time; brief.
The momentary pause in the conversation made everyone feel awkward.
Momentary → It is formed from "moment" (from Latin *momentum*, meaning a brief period of time or movement) and the suffix "-ary" (meaning relating to or connected with). The word "momentary" describes something that is related to or lasts for a very brief period of time.
Think of a 'moment' as a brief period of time, and remember that 'momentary' refers to something that lasts only for that short time.