unfeasibilities

Things that won't work

Things that cannot be done or achieved.

The plural marks multiple distinct impossibilities rather than a general condition: The committee catalogued the unfeasibilities of the proposal—the timeline, the budget, the staffing requirements.

A formal and somewhat bureaucratic word, more common in technical or administrative contexts than everyday speech.

practical

impossibilities

Things that cannot exist

hindrances · limitations · constraints · roadblocks · impediments · dealbreakers · showstoppers · bottlenecks · hurdles · restrictions

technical

incompatibilities

Inability to coexist harmoniously

glitches · bottlenecks · dependencies · breakdowns · malfunctions · deficiencies · shortcomings · flaws · inadequacies · restrictions

bureaucratic

impossibilities

Things that cannot exist

  • red tapeBureaucratic obstacles to action
economic

budget constraints

Limits on spending capacity

Opposites
practicality/achievability

unfeasibilitiesfeasibilities

Degrees of being achievable

practicabilities · possibilities · viabilities · practicalities · capabilities

Family

unfeasibility, feasibility, feasibilities, infeasibility, feasible, infeasible, unfeasible, feasibly, feasibleness

Familiarity
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Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G