Adjectives Starting with 'O' and Ending in 'ING'

Explore 31 verified English adjectives starting with 'O' and ending in 'ING', including everyday words like Operating, Opening, Outstanding and Ongoing. Browse the full alphabetical list below, or review grammatical rules and sentence examples in our adjective grammar guide.

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Starts with OB1 words
obliging
Starts with OC2 words
oceangoing
occulting
Starts with OF1 words
offputting
Starts with ON4 words
ongoing
oncoming
onrushing
onlooking
Starts with OP4 words
operating
opening
opposing
operagoing
Starts with OU6 words
outstanding
outgoing
outlying
outswinging
outcrossing
outdwelling
Starts with OV12 words
overwhelming
overarching
overpowering
overbearing
overweening
overcontrolling
overdemanding
overmastering
overstanding
overwing
overtrusting
overdaring
Starts with OW1 words
owing
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