unfriendly (adj.)
- adversative
- adverse
- aggressive
- alien
- allergic
- antagonistic
- anti
- antipathetic
- antithetic
- autistic
- averse
- bashful
- bellicose
- belligerent
- bloodthirsty
- bloody
- bloody-minded
- chauvinistic
- chilly
- clashing
- close
- closed
- cold
- combative
- competitive
- conflicting
- contentious
- contradictory
- contrary
- cool
- counter
- cross
- disaffected
- disenchanted
- disinclined
- displeased
- dissentient
- dissociable
- ferocious
- fierce
- fighting
- fractious
- frosty
- hawkish
- hostile
- icy
- ill
- incompatible
- inhospitable
- inimical
- jingoistic
- martial
- militant
- militaristic
- military
- morose
- negative
- nongregarious
- obstinate
- offensive
- opponent
- opposed
- opposing
- opposite
- oppositive
- perverse
- pugnacious
- quarrelsome
- recalcitrant
- refractory
- repugnant
- sanguinary
- sanguineous
- savage
- scrappy
- self-contained
- self-sufficient
- snug
- soldierlike
- soldierly
- strained
- sullen
- tense
- trigger-happy
- truculent
- uncommunicative
- uncongenial
- uncooperative
- uncordial
- unfavorable
- ungracious
- unharmonious
- unneighborly
- unpeaceable
- unpeaceful
- unpropitious
- unreceptive
- unsociable
- unsocial
- warlike
- warring
Pernicious weed! whose scent the fair annoys,
Unfriendly to society's chief joys:
Thy worst effect is banishing for hours
The sex whose presence civilizes ours.