onerous /onˈə-rəs or ōˈnə-rəs/

1. Burdensome
2. Oppressive

onˈerously adverb

• sloganised
• sloganises
• sloganising
• sloganisings
• sloganize
• sloganized
• sloganizes
• sloganizing
• sloganizings
• slogans
• slogged
• slogger
• sloggers
• slogging
• slog one's guts out
• slogs
• sloid
• sloids
• sloken
• slokened
• slokening
• slokens
• slo-mo
• sloom
• sloomed