ANT: Lose, forfeit, abandon, betray, surrender, impair, deteriorate.
=
KEY: Retrogression.
SYN: Retreat, retirement, decline, relapse.
ANT: Advance, progress, improvement, amelioration.
=
KEY: Retrospect.
SYN: Review, survey, recollection, reminiscence, reconsideration.
ANT: Prognostication, anticipation, speculation, forecasting, prophecy, prospect.
=