1. (adjective) affording no ease or reassurance

• unstable

2. (adjective) fraught with danger

• parlous
• perilous
• touch-and-go

3. (adjective) not secure; beset with difficulties

• shaky

1. (adjective) affording no ease or reassurance

• uneasy

2. (adjective) fraught with danger

• dangerous
• unsafe

3. (adjective) not secure; beset with difficulties

• insecure
• unsafe

1. (adjective) affording no ease or reassurance

• instability
• unstableness
• precariousness
• uncertainness
• uncertainty

2. (adjective) fraught with danger

• danger
• peril
• risk
• endangerment
• hazard
• jeopardy
• peril
• risk
• hazardousness
• perilousness
• peril
• riskiness
• precariousness

3. (adjective) not secure; beset with difficulties

• precariousness
• uncertainness
• uncertainty
• shakiness