Collocations for undermine - verb

greatly, radically, seriously, severely, significantly
His position within the government has been seriously undermined.

completely, totally
ultimately
It ultimately undermined his ability to play.

rather, somewhat
further
effectively
actively
fatally
subtly
systematically
gradually, increasingly, progressively
eventually
potentially
constantly

threaten to
attempt to, seek to, try to
conspire to, help (to), serve to, tend to
be likely to
be designed to, be intended to
a terror attack intended to undermine the morale of citizens

Undermine is used with these nouns as the object:
ability, argument, authority, belief, confidence, credibility, democracy, doctrine, dominance, economy, effectiveness, effort, faith, foundation, health, incentive, independence, institution, integrity, morale, regime, security, self-confidence, stability, strength, system, testimony, thesis, trust, validity, viability