|jānə|sfāst adjective
or janus
Usage: usually capitalized J
Etymology: after Janus, the god or numen
1. : looking in opposite directions
a Janus-faced look at the past and future of our national economy
2. : having two contrasting aspects
a Janus-faced alternation of melodic variations in major and minor throughout the movement
3. : two-faced , deceitful